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sound & light

brandon frazier

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Across
3.materal which a wave travels
6.one half the distance between the crest and trough
7.made of vibration
9.the abuilty for two waves to form into one wave
11.reflected sound wave
15.change of frequncey of a sound wave
16.how high or low a sound is
17.point of optical axis of a mirror
18.light bouncing off a smooth object
19.makes things visable to the eye
20.let only some light pass through
Down
1.the bending of a wave
2.the principle that when a ray of light, radar pulse, or the like, is reflected from a smooth surface the angle of reflection is equal to the angle of incidence,
4.measured in hertz
5.human precipitation of how much energy a sound carries
8.lets all light pass through
10.curved mirror and its focus
12.the bending of a wave around a barrier
13.straght beam of light
14.does not let any light pass thourgh

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