| A | B |
|---|
| amplitude | how far an object making sound is vibrating side to side; the distance that a wave rises or falls from its normal rest position; determines loudness |
| cathode ray oscilloscope (CRO) | equipment that shows wave shapes and patterns |
| sound wave | how sound energy travels from place to place |
| rarefaction | a region where particles are spread out |
| compression | a region where particles are pushed together |
| *wave | a rhythmic disturbance that transfers energy through space or matter |
| *crest | the highest point of a wave |
| *trough | the lowest point of a wave |
| *wavelength | the distance between the distance between troughs or peaks that are next to each otheradjacent troughs or peaks |
| *transverse wave | a wave whose vibration is at right angles to the direction it is traveling |
| *longitudinal wave | a wave whose vibration is in the same direction as it is traveling |
