5.5 Sound

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Across
  1. 3. Size of objects vibrating slower with a lower pitch.
  2. 8. The highness or lowness of sound.
  3. 11. What is required for sound to be heard?
  4. 12. Type of percussion instrument.
  5. 13. The amount of energy in a sound wave related to intensity and volume.
  6. 14. Produce sound by blowing air and changing lip position.
  7. 15. The distance between two side-by-side compressions.
  8. 16. Sound travels fastest through what type of matter?
  9. 17. What moves backward and forward through matter in a compression wave.
  10. 19. The number of vibrations in a unit of time.
  11. 21. Produce sound by vibrating strings.
Down
  1. 1. In order for humans to make sounds, these must produce vibrations.
  2. 2. During a thunderstorm, you see the lightning before you hear thunder because this travels at a faster speed than sound does.
  3. 4. Sound travels slowest through what type of matter?
  4. 5. Areas of decreased pressure in a wavelength.
  5. 6. What is one thing required for sound to be formed?
  6. 7. These animals hear sounds at a very low frequency.
  7. 8. Produce sound by making an impact and causing a surface to vibrate.
  8. 9. Areas of increased pressure in a wavelength.
  9. 10. Produce sound by blowing air across sharp reed or edge.
  10. 18. Sound travels less quickly through what type of matter?
  11. 19. Type of woodwind instrument.
  12. 20. What is sound?