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quesions and answers from powerpoint notes

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