quesions and answers from powerpoint notes
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| ___________ is the bouncing back of a particle or wave that strikes a boundary between two media. | relflection
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| Usually waves are partly relflected and partly refracted when they fall on a ___________ medium. | transparent
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| Some waves are _____________ relflected. | partially
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| Metal surfaces are _________ to light waves. | rigid
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| Light energy does not ______________ into the metal, but instead is returned in a reflected wave. | propagate
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| Materials such as __________ and _________ are not as rigid to light waves. | glass, water
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| A light wave that strikes a boundary is called a(n)_________ wave. | incident
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| An incident wave's path is drawn as a straight line arrow and is called a(n) ____________ ray. | incident
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| A light wave that bounces off a boundary is called a(n) ________ wave. | reflected
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| A reflected wave's path is drawn as a(n) _________ ray. | reflected
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| A line drawn ________________ to the point where the incident ray strikes the barrier is called a _____________. | perpendicular, normal
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| A normal is drawn as a ____________ line. | dashed
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| Diffuse reflection is the reflection of light from a _________ surface. | rough
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| The many different __________ that incident light rays encounter at the surface cause reflection in many different ____________. | angles, directions
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| Whether a surface is a ___________ relflector or a ___________ reflector depends on the wavelength of the wave if reflects. | diffuse, polished
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Created by:
4minutesofpapaya
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