Wave, Sound, and Light

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Across
  1. 2. Lens a lens that is thicker at the edge than in the middle
  2. 5. Spectrum the range of all types of EM waves
  3. 6. the highest surface part of a wave
  4. 11. the number of times the pattern repeats in a given time
  5. 12. a material in which a wave travels
  6. 13. transparent object with at least one curved side that causes light to change direction
  7. 14. a material through which light does not pass through
  8. 15. a material that allows most of the light, but you cannot see through clearly
  9. 17. the maximum distance that the wave moves from its rest position
  10. 19. the distance between one point on a wave to the same point on the next wave
  11. 20. the passage of a wave on its surface
Down
  1. 1. the transfer of energy tat is absorbed by a barrier
  2. 3. Lens a lens that is thicker in the middle than on the edges
  3. 4. the change in direction of a wave as it changes speed while moving from one medium to another
  4. 7. Waves a wave that travels only through matter
  5. 8. a material that allows almost all of the light striking it to pass through, and through which objects can be clearly seen
  6. 9. the change in direction of a wave when it travels by the edge of an object or through an opening
  7. 10. bouncing of a wave on its surface
  8. 16. Filters a photographic filter that absorbs light of certain colors
  9. 18. a piece of glass or other transparent material cut with precise angles and plane faces, useful for analyzing and reflecting light