Reviewing Waves

Mechanical waves have to travel through….

•A fulcrum• Empty space•Water only•A medium

Electromagnetic waves can travel through…

•Gases, solids and liquids only• Empty Space only•A vacuum only•A medium and a vacuum

What is empty space?•Underneath you bed•Where there is no matter• Gases, solids and liquids• The air around you

Of course at

this point you’d

be a vegetable  

An example of a mechanical wave is…

• Light waves• Sounds waves•Ultraviolet waves•X-rays

An example of a electromagnetic wave is…

• Light waves• Sounds waves•Water waves• Seismic waves

Another name for longitudinal waves is…

•Rarefaction waves• Sounds waves• Transverse waves•Compression waves

Longitudinal waves need to vibrate matter in order to move

so all are examples of…• Electromagnetic •Mechanical waves• Transverse waves•Ocean waves

Longitudinal waves move __________ the direction the

wave is moving.• Closer to • Away from • Perpendicular to• Parallel to

The areas squeezed together in a longitudinal waves is called…

• Transverse• Rarefaction• Compression• Crest

The area spread out in a longitudinal waves is called…

• Transverse• Rarefaction• Compression• Trough

Find a compression. Find a rarefaction.

Sound is an example of what kind of wave?

• Transverse• Longitudinal•Ocean• X-ray

Transverse waves move ______ the direction the wave travels.

• Closer to • Away from • Perpendicular to• Parallel to

The highest point of a transverse wave is called…

• Crest• Trough• Compression• Rarefaction

The lowest point of a transverse wave is called…

• Crest• Trough• Compression• Rarefaction

What is wavelength?

• Distance from crest to crest• Distance from middle of wave to crest

or middle to trough• Number of waves that pass through a

point in a second•Middle of a wave

What is wave frequency?

• Distance from crest to crest• Distance from middle of wave to crest

or middle to trough• Number of waves that pass through a

point in a second•Middle of a wave

What is amplitude?

• Distance from crest to crest• Distance from middle of wave to crest

or middle to trough• Number of waves that pass through a

point in a second•Middle of a wave

Which of the following is NOT an example of a transverse wave?

•Water wave• Light waves• Strings on a musical instrument• Sound Waves

Sound travels the fastest through what media?

•Water •Air• Solids• Empty space

What wave travels the fastest?

• Light waves• Sound waves•Ocean waves• Seismic waves

We see things because our eyes _________ light.

• Refracts• Blocks• Absorbs• Reflects

The color white ______ all colors while the color black _______ all colors.

• Absorbs, reflects• Reflects, absorbs• Absorbs, absorbs• Reflects, reflects

Light gets reflected at ________ angle it hits.

• a higher• a lower• a different • the same

The bending of a wave as it passes from one medium to another is called…

• reflection• refraction• diffraction• interference

When an object causes a wave to change direction it is called…

• reflection• refraction• diffraction• interference

When two waves collide or run into each other it is called…

• reflection• refraction• diffraction• interference

Which picture shows constructive interference and which shows

destructive interference?

Review of things we have learned earlier

this year…

What do we call a membrane that only lets some substances pass through (like the cell membrane)?• Permeable• Impermeable• Selectively Permeable• Absolutely Permeable

If you have a rabbit with black fur (Bb) crossed with a rabbit with

brown fur (bb), what will be the phenotype percentages?

What about the genotypes?

• What are the 3 reactants of photosynthesis?

• What are the 2 products of photosynthesis?

• What are the 2 reactants of cellular respiration?

• What are the 3 products of cellular respiration?

What is an example of bioengineering?

• A tomato plant that is made to repel insects.• A greenhouse.• A tree that grows better with more sunlight.• A microscope.

Put these pictures from mitosis in order:

In diffusion, particles move from an area of __________ concentration

to an area of ____________ concentration.

What do plant cells have that animal cells do not have?

1.2.3.

Newton’s 3 Laws of Motion

• Which law explains why when a cannon ball leaves a cannon, it forces the entire cannon backwards (like the kick-back from a gun)?

• Which law explains why when a moving car stops your body wants to keep moving?

• Which law explains why it take more forces to move a bowling ball then a kick ball?

What is an unintended consequence of the cell phone?

A. Being able to call someone when you are stranded on the side of the road

B. People texting and driving and getting into more accidents.

C. Being able to communicate from almost any location.

D. Parents and children being able to communicate more easily.

Put the following steps of the technology design process in the

correct order:

• Solution design• Problem Identification• Implementation (trying it out)• Evaluation