Physical Science vocabulary

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Across
  1. 2. Frequency: the frequency at which an object vibrates when it is disturbed.
  2. 5. When the frequency of a forced vibration matches an object’s natural frequency.
  3. 6. Vibration: Occurs when an object is made to vibrate by another vibrating object that is nearby.
  4. 7. Periodic variation in the loudness of sound.
Down
  1. 1. Sound waves with frequencies above 20,000 hertz.
  2. 3. This pulse of compressed air.
  3. 4. Sound waves with frequencies below 20 hertz.