Wave Behavior
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Transcript of Wave Behavior
![Page 1: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/1.jpg)
Unit 7 –Lecture 3
![Page 2: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/2.jpg)
ClaritySubstances have varying levels of clarity –
transparent materials allow waves to pass through with minimum or no distortion
![Page 3: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/3.jpg)
ClaritySubstances have varying levels of clarity –
translucent materials allow waves to pass through them with varying degrees of distortion
![Page 4: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/4.jpg)
ClaritySubstances have varying levels of clarity –
opaque materials do not allow waves to pass through themwaves must be
reflected or absorbed
![Page 5: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/5.jpg)
Reflectionoccurs when a wave strikes an object and
bounces off of itechos (& echolocation)image in mirror
![Page 6: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/6.jpg)
ReflectionLaw of Reflection
the angle of incidence [input] must equal the angle of reflection [output]
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Mirrorsmirrors must be smooth so all the angles line
up to make a clear picture in the reflection [plan(e/ar)]
Smooth Surface Rough Surface
![Page 8: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/8.jpg)
MirrorsConcave
“caved in”light rays, etc., converge in the centermake the image larger or focus energy
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MirrorsParabolic
Satellite dishesLighting the Olympic Torch
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MirrorsConvex
“curved out”Light rays, etc., spread out from the centerImages look smaller, but cover more area
![Page 11: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/11.jpg)
Mirrors
![Page 12: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/12.jpg)
Refractionbending of a wave as it moves from one
medium to anotherthe image difference is caused by a change
in the speed of the wave
![Page 13: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/13.jpg)
Refraction“edges” of wave “slow down” in a more dense
medium and “speed up” in a less dense mediumbends towards
the “normal” in a more dense medium
away from the “normal” in a less dense medium
![Page 14: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/14.jpg)
Refractiondepends on the
type of mediumthe angle the wave hits the medium
waves of light move faster through air than through water
![Page 15: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/15.jpg)
RefractionLaw of Refraction
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RefractionOil & Gasoline Rainbows
because of the different densities of oil, gasoline, water, and air, a rainbow-like refraction can form in puddles near well-traveled parking lots
![Page 17: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/17.jpg)
RefractionLenses act to control the refraction of light to
focus it in a more desirable manner.
![Page 18: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/18.jpg)
Diffractionthe bending of waves around a barrier
if 1 edge, only one curveif 2 edges, both
will bend the wave
![Page 19: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/19.jpg)
Diffraction
![Page 20: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/20.jpg)
Interferencecaused by the passing of two waves through
one anotherhow the waves line up determines how they
will interact
![Page 21: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/21.jpg)
Interferenceconstructive interference –
crests and troughs line up build on one anotherare said to be “in phase”
![Page 22: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/22.jpg)
Interferencedestructive interference –
crests and troughs don’t line uplessen one anothersaid to be “out of phase”
if they are exactly opposite, they will cancel each other out
![Page 23: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/23.jpg)
Interference
![Page 24: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/24.jpg)
![Page 25: Wave Behavior](https://reader037.fdocuments.in/reader037/viewer/2022110101/56812fee550346895d956479/html5/thumbnails/25.jpg)
HomeworkFINISH YOUR WAVES PACKET
We will be going over it on Monday.
complete worksheet on back of notes
study for upcoming test = Weds next week