Across
- 3. sound is determined by the frequency of vibration of the sound waves that produce them
- 5. when the frequency is increased frequeny decreases with the decrease in pitch.
- 7. sounds include bass drum, thunder, and a deep male voice including from
- 8. Frequencies above 20,000 Hz are known as
Down
- 1. is the relative strength of sound waves (transmitted vibrations), which we perceive as loudness or volume
- 2. to measure Amplitude
- 4. The units of frequency
- 6. longitudinal wave compressions and rarefactions in the air produce it.