Across
- 4. wave: travels perpendicular to the direction of the source's motion
- 6. distance from crest to resting point
- 7. number of occurrences in a given period of time
- 10. high-density area in a longitudinal wave
Down
- 1. low-density area in a longitudinal wave
- 2. wave travels parallel to the direction of the source's motion
- 3. distance from one crest to another on a wave
- 5. object that a wave travels through to transfer energy
- 8. low point of a wave
- 9. high point of a wave