Physical Science Ch 18 Sound

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Across
  1. 4. A box-like structure located at the top of your trachea.
  2. 6. First accurately measured the speed of sound through air.
  3. 8. Suspected that air was necessary to transmit sound.
  4. 10. The process of making a sound louder.
  5. 13. The distinctive sound of an instrument; the quality.
  6. 14. Human perception of the intensity of a sound wave.
  7. 16. How high or low an audible tone sounds to the human ear.
  8. 17. Sound needs a physical ______________ to travel through.
  9. 18. A large muscle that forms the floor of the chest cavity.
  10. 19. A device for detecting submerged objects by using sound.
  11. 20. A measure of the power contained in a wave.
  12. 21. The speed of sound is dependent on the ______________ of air.
  13. 24. The number of waves or cycles that occur per second.
Down
  1. 1. The fundamental tone and its overtones.
  2. 2. Sound having frequencies above the range of human hearing.
  3. 3. Sound having frequencies below the range of human hearing.
  4. 5. A region of lower density and pressure in a longitudinal wave.
  5. 7. The continuum of all possible sound waves.
  6. 9. The unit for measuring relative sound intensity.
  7. 11. Sound waves are _______________ waves.
  8. 12. A shorter, faster vibration (higher pitch) in addition to the fundamental tone produced by a vibrating structure.
  9. 15. A type of energy that can be transmitted through a medium.
  10. 22. Technology that uses ultrasound to create images of objects found inside other objects.
  11. 23. The longest (lowest frequency) standing wave produced by a vibration of a structure.