Across
- 2. need medium for travel
- 4. number of waves per second
- 6. particles that are furthest apart
- 7. highest point of a wave
- 8. lowest point of a wave
- 9. waves maximum height or depth
- 10. rate of wave travel
- 12. particles move parallel
- 13. distance between wave peaks
- 15. substance for wave travel
Down
- 1. perpendicular motion
- 3. particles that are closest together
- 5. light and radio waves
- 11. ripple in water
- 14. unit for frequency