Across
- 2. change in direction of the sound
- 6. above 20,000 Hz
- 9. distance of one cycle
- 10. progressive weakening of the sound
- 12. density x speed
- 13. below 20Hz
- 16. concentration of mass per volume
- 17. distance to the reflector
- 18. based on a logarithmic scale
- 19. high density and pressure
Down
- 1. low density and pressure
- 3. redirection of sound in many directions
- 4. number of cycles
- 5. rate at which energy is transmitted
- 7. range of frequencies
- 8. time to complete one cycle
- 11. energy is dissipated in the form of heat
- 14. above 20 HZ and below 20,000 Hz
- 15. reflector smaller than the wavelength