Joe's waves puzzle

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Across
  1. 5. a measurement of the amount of energy transferred by a wave
  2. 10. a form of radiation that travel though the universe
  3. 11. the transfer of energy from a wave to a medium
  4. 12. the number of waves produced by a source each second
Down
  1. 1. the bending of waves as it passes from one material to another
  2. 2. describes how long the wave is
  3. 3. the change of direction of propagation of a wave when it meets a boundary
  4. 4. waves where the particle motion is in the same direction in which the wave is propagating
  5. 6. a form of renewable energy in which electricity is generated by harnessing the up-and-down motion of ocean waves
  6. 7. a way of showing how all types of electromagnetic radiation are spread out based on their frequency and wavelength
  7. 8. a radio wave with a wavelength between 100 and 1000 meters
  8. 9. a wave that oscillates perpendicularly to the direction of the wave's advance