Across
- 3. The sound from moving sources
- 5. the bottom of a wave
- 7. Sound travels slowest through this
- 9. Can be produced by sound
- 11. Unit of sound measuring.
- 15. A wave perpendicular to direction
- 18. Low pressure in a sound wave.
- 19. Increased with amplitude
- 20. sound travels fastest through this
- 21. Height above the medium
Down
- 1. Is directly related to amplitude
- 2. A wave in the same direction
- 4. The number of waves passing a point in time
- 6. From one crest to the next crest
- 8. high pressure in sound waves
- 10. high or low sound
- 12. The top of a wave
- 13. Solids, liquids, gasses
- 14. Mechanical vibrations
- 16. Caused by sound traveling faster than the speed of sound
- 17. The combination of two or more different sound waves