Physics

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