Across
- 2. the top of a wave
- 6. parts of a longitudinal wave where particles are close together
- 7. time for one wave
- 9. the unit of frequency
- 11. light and infrared radiation are this type of wave
- 13. parts of a longitudinal wave where particles are further apart
Down
- 1. particles vibrate perpendicular to direction of wave
- 3. the distance between equilibrium point and maximum displacement
- 4. particles vibrate parallel to direction of wave
- 5. an example of a longitudinal wave
- 8. number of waves per second
- 10. the length of one complete wave
- 12. the bottom of a wave