| A | B |
|---|
| wave | A traveling disturbance that carries energy. |
| frequency | The number of waves that pass a stationary point per unit of time. (seconds) |
| longitudinal wave | Waves where the matter moves back and forth parallel to the direction the wave travels. |
| trough | The lowest point of a wave. |
| wavelength | The distance on a wave between two of the same points. (crest to crest, or trough to trough) |
| amplitude | The greatest height from the normal resting position to the crest (or the trough). |
| vibrations | The movement of back and forth or up and down. |
| transverse wave | Waves where the matter moves up and down perpendicular to the direction of the wave travels. |
| crest | The highest point of a wave. |
| normal resting point | The middle line or baseline of the wave. |
