Sound

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Across
  1. 3. The to add fro motion of a simple pendulum
  2. 5. Maximum displacement of a simple pendulum from its mean position
  3. 10. Can hear infrasound
  4. 11. Unpleasant sound
  5. 12. Time period is the _ taken for one oscillation
  6. 14. vocal chords are longest in _
  7. 15. Sound with frequency above 20,000 Hz
  8. 16. _ is determined by the amplitude
  9. 18. _ is determined by frequency
Down
  1. 1. Sound cannot travel in_
  2. 2. Can hear ultrasound
  3. 4. Sound with frequency below 20 Hz
  4. 6. Amplitude and frequency are the two _ of sound
  5. 7. Reflection of sound
  6. 8. Pleasant sound
  7. 9. Sound is produced by _ objects
  8. 10. Unit of Loudness
  9. 13. Number of oscillations per second
  10. 17. Sound travels fastest in the _
  11. 19. Unit of frequency