kohl- chapter 29
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| what law states that the angle of incidence and the angle of reflection are equal to each other? | law of reflection
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| what is the line perpendicular to the incident rays and reflected rays? | normal
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| what is the angle between the incdent ray and the normal called? | angle of incidence
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| what is the angle between the reflected ray and the normal called? | angle of reflection
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| what is the only kind of image that plane mirrors can produce? | virtual image
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| what is reflection of light from a rough suface? | diffuse reflection
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| what happens to the sound energey that is not reflected? | absorbed
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| what is the study of sound? | acoustics
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| what is the mulitple reflection of sound waves called? | reverberations
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| what do wave fronts represent the position of? | crests
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| what kind of waves are refracted when parts of a wave front travel at different speeds? | sound waves
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| why do the directions of light rays change? | refraction
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| what is the appearance of a distorted image called? | mirage
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| what happens to light that is not relfected? | refracted
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| what do you see when you turn your back to the sun? | spectrum of colors in a bow
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