Sound Waves

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Across
  1. 5. All objects ___ when they make sounds
  2. 6. When an object moves back and forth, it produces bands of compressed and __ particles
  3. 7. The highness or lowness of a sound
  4. 10. The low point of a wave
  5. 12. Sounds needs ____ to travel
  6. 13. The distance from the starting position to a peak or valley
  7. 15. Collisions transfer this across a medium
Down
  1. 1. The distance between two compressions in a sound wave.
  2. 2. The high point of a wave
  3. 3. The higher the amplitude the __ the sound
  4. 4. The higher the pitch the ___ the frequency
  5. 8. Areas of high density of particles due to sound.
  6. 9. Bands of compression travel, but these do not
  7. 11. Movement of an object back and forth past its starting position
  8. 12. A substance made of matter that sound can travel through. (Solids, liquids, and gases)
  9. 14. The number of peaks and valleys in one second