Across
- 3. a rapid motion back and forth.
- 5. a sound that is a copy of another sound and that is produced when sound waves bounce off a surface (such as a wall)
- 6. prevents sound vibrations
- 7. how big a wave is, relates to volume of sound
- 10. a branch of physics related to sound
- 14. sound that continues to vibrate long after the sound is produced
- 15. a vibration, or wave, that travels through matter (solid, liquid, or gas) and can be heard.
- 16. describes how low or high a note sounds
- 17. sits at the top of the windpipe, or trachea. It helps produce vocal sounds and closes the windpipe during swallowing so that no food particles pass into the lungs
- 18. is a thin flap of skin that is stretched tight like a drum and vibrates when sound hits it.
- 19. how loud or quiet a sound is
Down
- 1. scientific name for wind pipe
- 2. scientific name of eardrum
- 4. one distinguished for skill and power as a public speaker
- 8. unit of measurement for sound =frequency equal to one cycle per second, relates to pitch <Hz>
- 9. unit of measurement for volume <dB>
- 11. A metal plate, supported by a post in its center, that vibrates when rubbed with a bowd
- 12. how fast the wave is oscillating (moving back and forth)
- 13. folds of tissues that produce the voice by vibrating