Sound Waves and Hearing Crossword Puzzle

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Across
  1. 6. Wave Particales of a medium vibrate in the same direction that the wave travels.
  2. 7. A measure of how far the particles in the medium move away from their normal rest position.
  3. 9. Wave A wave disturbance in electric and magnetic field.
  4. 11. Speed The speed at which a wave travels.
  5. 12. Are sound waves that have frequencies greater than 20,000 Hz.
  6. 13. A reflected sound wave.
  7. 14. Effect A change in the observed frequency of a wave.
  8. 16. The distance from any point on a wave to an identical point on the next wave.
  9. 18. The material through which a wave travels.
Down
  1. 1. The most common unit to express loudness.
  2. 2. Wave A longitudinal wave that is caused by vibrations and travels through a medium.
  3. 3. A wave that tells how many cycles occur in an amount of time.
  4. 4. When two or more waves overlap and combine two form one wave.
  5. 5. How high or low you think a sound is.
  6. 8. Wave A wave that requires a medium through which it travels.
  7. 9. The use of echos, or reflected sound waves to find objects.
  8. 10. Wave Particles move perpendicularly to the direction the wave travels.
  9. 15. A disturbance that transfers energy from one place to another.
  10. 17. A measure of how well a sound can be heard.