| A | B |
|---|
| absorption | the transfer of energy by a wave to the medium through which it travels |
| transmission | the passage of light through an object |
| reflection | bouncing of a wave off a surface |
| law of reflection | when a wave is reflected from a surface, the angle of reflection is equal to the angle of incidence |
| refraction | the change in direction of a wave that occurs as the wave changes speed when moving from one medium to another |
| diffreaction | the change in direction of a wave when it travels by the edge of an object or through an opening |
| interference | occurs when waves that overlap combine forming a new wave |
| constructive interference | when two waves form anew wave with a greater amplitude than either of the original waves |
| destructive interference | occurs when a crest of one wave overlaps the trough of another wave, the new wave has a smaller amplitude that the sum of the amplitudes of the original waves |
