| A | B |
|---|
| wave | rhythmic distrubances that carry energy through matter or space |
| medium | a material through which a wave transfers energy |
| transverse wave | when the medium moves at right angles to the direction the wave travels |
| trough | low point of a transverse wave |
| crest | high point of a transverse wave |
| wavelength | the distance between a point on one wave and the identical point on the next wave |
| amplitude | the distance from the crest (or trough) to the rest position of the medium |
| frequency | the number of wave crests that pass on place each second |
| compressional wave | when the media moves in the same direction as the wave travels |
| compression | the crowded part of the compressional wave |
| rarefaction | the less dense part of the compressional wave. |
