Across
- 7. in air the speed of sound depends on...
- 10. unit for frequency
- 11. distance between crest to crest or trough to trough
- 12. the number of wave cycles per second
- 14. a wave that moves "up and down" respect to the direction at which the wave travels
- 15. a wave that moves "side to side" respect to the direction at which the wave travels
- 16. sound travels the fastest in a...
Down
- 1. the object/material in which the energy is carried through
- 2. source of sound waves
- 3. an observer hears a _____ frequency as a moving sound source approaches
- 4. the period of a pendulum swing depends on...
- 5. as wavelength increases the frequency...
- 6. low pressure part/region of a sound wave
- 8. unit for wavelength
- 9. higher frequency yields _____ wavelength
- 13. time for one complete cycle