Waves

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Across
  1. 7. Waves that do not require a medium.
  2. 10. When the motion of particles are perpendicular what is the direction of the wave?
  3. 12. The_____ is a measure of the number of waves that pass a point in a given amount of time.
  4. 14. What is it called when light can not pass through?
  5. 15. Materials that absorb wave’s energy as they pass through.
Down
  1. 1. As wavelength increases, the frequency______?
  2. 2. The distance from one crest to the next crest is______?
  3. 3. When do electromagnetic waves travel the fastest?
  4. 4. When the particles in a medium vibrate parallel what is the direction of the wave?
  5. 5. As wavelength decreases, the frequency______?
  6. 6. Bending of a wave that passes through
  7. 8. Waves that require a medium.
  8. 9. The matter through which a wave travels is called the___?
  9. 11. Waves that bounce back off a barrier?
  10. 13. Energy is the ability to do_____?