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1 May 77:44 AM Reflection , Diffraction, and Refraction Waves reflect at a "Free" boundary At a "Fixed" boundary, waves reflect and turn upside down (inverted) When a wave passes from one medium to another it is partially transmitted and partially reflected May 2 3:53 PM http://www.launc.tased.edu.au/online/sciences/physics/diffrac.htm l When a wave bends around an obstacle, or as it passes through an opening Diffraction is the bending of a wave around an edge, or when it strikes an obstacle

Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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Page 1: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

1

May 7­7:44 AM

Reflection , Diffraction, and Refraction 

Waves reflect at a "Free" boundary

At a "Fixed" boundary, waves reflect and turn upside down (inverted)

When a wave passes from one medium to another it ispartially transmitted and partially reflected

May 2 ­ 3:53 PM

http://www.launc.tased.edu.au/online/sciences/physics/diffrac.htm l

When a wave bends around an obstacle, or as it passes through an opening

Diffraction is the  bending  of a wave around an edge, or when it strikes an obstacle

Page 2: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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May 7­7:46 AM

Waves can also bend by refraction

When a wave strikes a boundary at an angle and its speed changes in the new medium it will refract

May 3 ­ 9:20 AM

Waves can also bend by refractionRefraction :   "When a waves strikes a boundary between two mediums at an angle it is bent as it passes into the new medium"

Page 3: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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May 7­7:52 AM

InterferenceWaves in the same place combine to produce a single wave

http://www.phy.ntnu.edu.tw/ntnujava/viewtopic.php?t=34&sid=653764f2e28287f4736699cc8efd6719

Apr 29 ­ 9:33 AM

Principle of Superposition "When two waves exist at the same time in the                  

same space in a medium."

Constructive Interference­ two waves            push in the same direction

Destructive Interference­ two waves            push in opposite direction

The result of the interaction is called:

Page 4: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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May 7­10:30 AM

May 7­9:49 AM

Page 5: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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May 7­9:53 AM

May 7­9:53 AM

beats

Page 6: Reflection , Diffraction, and Refraction - WISCO Sciencegreschner.wiscoscience.com/worksheets/Physical Science/Chpt 14/14.… · 1 May 77:44 AM Reflection , Diffraction, and Refraction

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May 7­9:54 AM

http://www.ngsir.netfirms.com/englishhtm/TwaveStatA.htm