waves

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Across
  1. 4. the return of light or sound waves from a surface
  2. 7. the change in the direction of a wave passing from one to another
  3. 8. the substance that transfer the energy or light from one subs. to another
  4. 9. the spreading out of waves as they pass through an aperture
  5. 12. happens when two waves overlap and they create a larger wave
  6. 13. happens when two waves overlap and cancel each other out
  7. 14. distance between the resting position and the max displacement
  8. 15. a form of energy that propagates as both electrical and magnetic
Down
  1. 1. the distance the wave travels in given amount of time
  2. 2. the complete range of all types of radiation that has both electric and magnetic fields
  3. 3. the number of waves that pass a fixed point in time
  4. 5. increase or decrease in the frequency of all waves
  5. 6. parallel to direction of wave
  6. 10. perpendicular to direction of wave
  7. 11. the legnth of one cycle of the wave