Sound

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Across
  1. 3. Sound travels faster in ___ temperatures.
  2. 6. The ___ the frequency, the lower the pitch.
  3. 8. Sound travels fastest through ___.
  4. 10. ___ is slower than light.
  5. 15. The higher the frequency, the ___ the pitch.
  6. 16. ___ is the amount of energy in a compression wave. It changes the intensity and volume.
  7. 17. ___ is when molecules of the wave are pushed together.
  8. 18. ___ happens when an air molecule goes back and forth.
  9. 19. Sound waves are called ___ (compression) waves.
  10. 20. Can sound travel in a vacuum?
Down
  1. 1. Irregular and soft surfaces ___ sound.
  2. 2. ___ is how volume is measured.
  3. 4. Sound travels slowest through ___.
  4. 5. ___ is the number of wavelengths in a specific time.
  5. 7. ___ is measured from 2 compression or 2 rarefactions.
  6. 9. The greater the amplitude, the sound will be ___.
  7. 11. A medium is a solid, ___, or gas.
  8. 12. When molecules of a sound wave are apart it's called ___.
  9. 13. Sound needs a ___ to travel.
  10. 14. Sound is a form of ___.