Sound Waves and Energy

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Across
  1. 5. The number of a wavelengths that pass a point each second is a wave's
  2. 8. the region of a longitudinal wave where the particles are farthest apart
  3. 9. is the maximum distance a wave varies from it's rest position
  4. 12. an electromagnetic wave with a slightly shorter wavelength and higher frequency than light is an
  5. 13. the region of a longitudinal wave where the particles of the medium are closest together
  6. 14. the amount of energy that passes through a square meter of space in one second
  7. 15. an electromagnetic wave with a wavelength shorter than a microwave but longer than light is an
  8. 16. a material that allows almost all of the light striking it to pass through and through witch objects can be seen clearly is
  9. 17. A wave in witch the disturbance is perpendicular to the direction the wave travels is a
  10. 18. a material through witch light does not pass is
Down
  1. 1. a matertial that allows most of the light that strikes it to pass through but though witch objects appear blurry is
  2. 2. a low frequency low energy electromagnetic wave that has a wavelength longer than 30 cm is called
  3. 3. the change in direction of a wave as it changes speed moving from one medium into another is called
  4. 4. A wave that makes the particles of a medium move back and forth parallel to the direction the wave travels is a
  5. 6. A wave that can travel through empty space or matter
  6. 7. a wave that only travels through matter
  7. 10. the perception of high or low around seems is called
  8. 11. the unit used to measure sound intensity or loudness is the