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Light
The Electromagnetic Connection
bull A changing magnetic field produces an electric field and a changing electric field produces a magnetic field
bull Electric and Magnetic fields can produce forces on charges
bull An accelerating charge produces electromagnetic waves (radiation)
bull Both electric and magnetic fields can transport energyndash Electric field energy used in electrical circuits
eg released in lightningndash Magnetic field carries energy through
transformer for example
Electromagnetic Radiation
bull Interrelated electric and magnetic fields traveling through space
bull All electromagnetic radiation travels at c = 3108 ms in vacuum ndash the cosmic speed limitndash real number is 2997924580 ms exactly
Examples of Electromagnetic Radiation
bull AM and FM radio waves (including TV signals)
bull Cell phone communication links
bull Microwaves
bull Infrared radiation
bull Light
bull X-rays
bull Gamma rays
bull What distinguishes these from one another
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
The Electromagnetic Connection
bull A changing magnetic field produces an electric field and a changing electric field produces a magnetic field
bull Electric and Magnetic fields can produce forces on charges
bull An accelerating charge produces electromagnetic waves (radiation)
bull Both electric and magnetic fields can transport energyndash Electric field energy used in electrical circuits
eg released in lightningndash Magnetic field carries energy through
transformer for example
Electromagnetic Radiation
bull Interrelated electric and magnetic fields traveling through space
bull All electromagnetic radiation travels at c = 3108 ms in vacuum ndash the cosmic speed limitndash real number is 2997924580 ms exactly
Examples of Electromagnetic Radiation
bull AM and FM radio waves (including TV signals)
bull Cell phone communication links
bull Microwaves
bull Infrared radiation
bull Light
bull X-rays
bull Gamma rays
bull What distinguishes these from one another
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
bull Both electric and magnetic fields can transport energyndash Electric field energy used in electrical circuits
eg released in lightningndash Magnetic field carries energy through
transformer for example
Electromagnetic Radiation
bull Interrelated electric and magnetic fields traveling through space
bull All electromagnetic radiation travels at c = 3108 ms in vacuum ndash the cosmic speed limitndash real number is 2997924580 ms exactly
Examples of Electromagnetic Radiation
bull AM and FM radio waves (including TV signals)
bull Cell phone communication links
bull Microwaves
bull Infrared radiation
bull Light
bull X-rays
bull Gamma rays
bull What distinguishes these from one another
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Electromagnetic Radiation
bull Interrelated electric and magnetic fields traveling through space
bull All electromagnetic radiation travels at c = 3108 ms in vacuum ndash the cosmic speed limitndash real number is 2997924580 ms exactly
Examples of Electromagnetic Radiation
bull AM and FM radio waves (including TV signals)
bull Cell phone communication links
bull Microwaves
bull Infrared radiation
bull Light
bull X-rays
bull Gamma rays
bull What distinguishes these from one another
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Examples of Electromagnetic Radiation
bull AM and FM radio waves (including TV signals)
bull Cell phone communication links
bull Microwaves
bull Infrared radiation
bull Light
bull X-rays
bull Gamma rays
bull What distinguishes these from one another
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Uses of Electromagnetic Wavesbull Communication systems
ndash One-way and two-way
bull Radar bull Cooking (with microwaves)bull Medical Imaging (X rays)bull ldquoNight Visionrdquo (infrared)bull Astronomy (radio wave IR visible UV gamma)
All that we experience through our eyes is conveyed byelectromagnetic radiationhellip
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
The Electromagnetic Spectrumbull Relationship between frequency speed
and wavelength
f = c f is frequency is wavelength c is speed
of lightbull Different frequencies of electromagnetic
radiation are better suited to different purposes
bull The frequency of a radio wave determines its propagation characteristics through various media
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Polarization of Radio Waves
B
ETransmitting antenna
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Reception of Radio Waves
Receiving antenna works best when lsquotunedrsquo to the
wavelength of the signal and has proper polarization
Electrons in antenna are ldquojiggledrdquoby passage of electromagnetic wave
B
E
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Questions
Why are car radio antennas vertical
Why are cell phone antennas so short
How do polarizing sunglasses work
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Radio waves
bull Radio waves ndash between 100-1m long
bull Communication radio and tv
bull AM- amplitude modulation
bull FM Frequency modulation
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Microwaves
bull Wavelength between 1m and 1mm long
bull Used for communication radar and cooking food
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Infrared
bull Wavelength between just below visible light
bull Between 750nm and 1mm
bull Perceived as heatbull Night vision heatingbull Nanometer is
11000000000 of a meter
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Visible light
bull Color RedOrange YellowGreenBlueViolet
Wavelength(nm)780 - 622 622 - 597597 - 577577 - 492492 - 455455 - 390
Frequency 384 - 482482 - 503503 - 520520 - 610610 - 659659 - 769
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Spectroscopy
bull spectrometer is an optical instrument used to measure properties of light over a specific portion of the electromagnetic spectrum
bull Elements give off different emission spectra when they glow
bull These can be used to identify the presence of elements
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Hydrogen
Helium
Carbon
Nitrogen
Oxygen
Neon
Sodium
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Properties of visible light
bull Absorption- light is absorbed by matter
bull Why does your flashlight become dim at a distance
bull Scattering is the release of light by the matter
bull Prism- Refracts light twice different wavelenghts are refracted more than others
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
The Visible Spectrum
A range of light waves extending in wavelength from about 400 to 700
nanometers
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Things that create a Spectrum
bull Prismbull Raindropsbull CDrsquosbull Spectroscopes
ndashContains a Diffraction Grating
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
bull Hot gas produces a bright line emission spectrum
(Bright Lines)
Emission Spectra
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Absorptionbull When an electron is raised to a higher
energy level the atom is said to be excited
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Emissionbull When the electron returns to a lower
energy level energy is released in the form of light
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Transmission
bull Matter that allows visible light to easily pass through are transparent
bull Matter that scatters light is translucent
bull Matter that does not transmit light is called opaque
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Ultraviolet
bull Wavelenghts above visible light 400nm-1nm
bull Photons have enough energy to kill living cells
bull Present in sunlight
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
X-rays
bull 10 to 001 nanometers
bull Diagnostic imagingbull Astronomy
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Gamma rays
bull Shorter then 01nm bull Radioactive decaybull Great penetrating
power
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Parts of the Human Eye(Supplement Handout)
bull Cornea ndash bends lightbull Iris ndash controls the amount of lightbull Pupil - openingbull Lens ndash focuses light onto retinabull Retina ndash back of eyebull Fovea ndash center of your visionbull Optic Nerve ndash ldquosignal wirerdquo (causes blind spot)
Blind Spot Demo O X
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
bull Rods - brightness receptors
bull Cones - color receptorsndash Three Types Red Green Blue
bull Cones are more numerous in the center of your vision
bull Rods are more numerous around the periphery of your vision
bull Demo ndash Moving markers near periphery
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Color Deficiency
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Color Vision
bull Colorblindness - about 10 of populationbull Red-green is predominantbull Yellow-blue - a few
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
What is colorbull Different wavelengths of light are
perceived as different colors
bull White light contains equal amounts of these colors (ROY G BIV)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Fill in the Blanks
bull Black objects _______ all of the pure colors
bull White objects _______ all of the pure colors
bull Transparent objects _______ all of the pure colors
absorb
reflect
transmit
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Mixing Colored Light Color Addition
bull Additive Primary Colors bull Redbull Greenbull Blue
bull One can produce any color by varying amplitude and mixture or red green and blue light
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
bull Complementary Colors - any two colors that add together to produce white
bull eg magenta + green = white
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
After Images and ldquoConal Fatiguerdquo
bull The human eye will see complimentary colors after staring at a color picture
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Transparent and Opaque
bull Transparentndash you can identify objects through it
bull Translucentndash you see diffuse light coming through it
bull Opaquendash you cannot see any light coming through itndash Opaque objects cast shadows
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
The Electromagnetic Spectrum
bull Radio Waves
bull Microwaves
bull Infrared
bull Visible Light
bull Ultraviolet
bull X-rays
bull Gamma Rays
bull Raging
bull Martians
bull Invade
bull Roy G Biv
bull Using
bull X-rays and
bull Gamma Rays
mnemonic
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Atmospheric Refraction
bull Our atmosphere can bend light and create distorted images called mirages
bull httpastrosfasuedumoviesHighway Mirage 1mpg
bull What causes stars to twinklendash Atmospheric Turbulence
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Earth
Sun
Sun
Because of atmospheric refraction we have lingering elliptical sunsets
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Holography
bull Holography- technique that produces a 3-D image without a lens
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Why is the sky blue
bull Nitrogen and Oxygen in our atmosphere scatter high frequencies of light
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Why are sunsets redbull Red light is scattered the least by our
atmosphere
bull The greatest path of sunlight through the atmosphere is at sunset or sunrise
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Why are clouds white
bull The color of light scattered by clusters of water molecules vary with the size of the clusters
bull The size of clusters of water molecules (droplets) vary in clouds
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
What happens when the source in in motion
Movie 1Movie 1
Java
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Source in Motion
Short Wavelength
High Frequency
High Pitch
Weeeeeeeee
Long Wavelength
Low Frequency
Low Pitch
Ooooooo
As a team describe what happens to the wavelength frequency and pitch both in front of and behind a moving sound source
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
Doppler Effectbull Examples
ndash moving cars and trains bull Soundbull Movie 2
ndash moving buzzer in a nerf ball (in class)
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