| A | B |
|---|
| amplitude | the distance from the crest or trough of a wave to the rest position |
| compression | squeezing a group of particles together |
| compressional wave | a wave in which matter moves back and forth in the direction the wave is moving |
| diffraction | a wave bends around a barrier |
| electromagnetic wave | a wave that doesn't require matter to transfer energy |
| frequency | the number of waves passing a given point per second |
| constructive interference | a combination of waves form a larger wave |
| destructive interference | a combination of waves form a smaller wave |
| mechanical wave | a transverse or compressional wave that can travel only through matter |
| medium | the matter through which a wave transfers energy |
| wave speed | the product of wavelength and frequency |
| rarefraction | a region of spread-out particles in a wave |
| reflection | the action of a wave bouncing off an object |
| refraction | a wave bends as it moves from one medium to another |
| transverse wave | a mechanical wave in which matter moves at right angles to the direction of the wave |
| wave | a rhythmic disturbance that carries energy |
| wavelength | the distance between a point on a wave and the identical point on the next wave |
