Across
- 1. waves vertical vibration of particles
- 5. number of wavelengths in 1 second
- 6. top of the wave
- 7. bottom of wave
- 9. waves require a medium to travel through
- 11. region of space where particles are bunched
- 12. frequencies above our hearing range
- 13. distance between 2 compression zones
Down
- 2. waves can travel through matter but do not require a medium
- 3. region of space where particles are spread out
- 4. how high or low a sound is
- 8. frequencies below our hearing range
- 10. height of a sound wave
- 14. waves horizontal vibration of particles