Physics IVQ

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Across
  1. 4. A high pitch has a high...
  2. 8. The distance from one wave to the same part on the next wave
  3. 9. Helps to funnel the sound into the ear
  4. 11. The medium in which sound travels the fastest
  5. 12. The distance from rest to crest
  6. 13. The number of waves per second
Down
  1. 1. The eardrum is made of this
  2. 2. The bending of light
  3. 3. Frequency times wavelength
  4. 5. How bats sense
  5. 6. The part of the electromagnetic spectrum that cleans medical equipment
  6. 7. The unit of sound
  7. 10. The part of the electromagnetic spectrum used in remote controls