Sound Energy

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Across
  1. 3. soft materials absorb sound and act as...
  2. 4. When sound bounces off hard materials
  3. 7. How sound travels
  4. 10. A measure of the amount of energy in a sound wave
  5. 11. Waves in which the molecules are crowded together
  6. 13. How sound energy is produced
  7. 16. Loudness of sound
  8. 17. The frequency of sound waves determines the...
  9. 18. When sound waves are trapped
  10. 19. The number of waves that pass a point each second
Down
  1. 1. Mr. Redwine's band
  2. 2. Matter that sound waves pass through slowly
  3. 4. When the molecules in a sound waves spread apart
  4. 5. A space where there is no matter
  5. 6. The sound developed by a lower frequency
  6. 8. Sound that passes through matter
  7. 9. Matter that sound travels through most quickly
  8. 12. The sound developed by a higher frequency
  9. 14. When sound is reflected back to its source
  10. 15. Distance from one crest to the next