| A | B |
|---|
| longitudinal wave | in this wave, particles move back and forth (parallel to the path of the wave) |
| transverse wave | in this wave, the particles move up and down (perpendicular ot the path of the wave) |
| amplitude | the distance the wave moves from the rest position |
| frequency | the number of vibrations the wave produces each second |
| crest | high point of a transverse wave |
| trough | low point of a transverse wave |
| compression | areas in logitudinal waves where the molecules are close together |
| rarefactions | areas in logitudinal waves where the molecules are pulled farther apart |
| medium | the matter through which a wave travels |
| wavelength | the distance between one point on a wave and the indentical point on the next wave |
| To measure a waves's speed you multiply the frequency by the | wavelength |
| reflection | this occurs when a wave "bounces" off a barrier |
| refraction | this occurs when a wave bends due to a change in medium |
| angle of incidence | the angle between the normal and the direction of the incoming wave |
| angle of reflection | the angle between the normal and the direction of the reflected wave |
| wave | a disturbance that travels through matter or space |
| standing waves | waves that from a pattern in which portions of the wave do not move but other portions move with increased amplitude |
