Sound and Light

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Across
  1. 2. the higher the frequency, the higher this is
  2. 5. when light bends and changes speed
  3. 6. the higher the amplitude, the higher this is
  4. 8. when light disappears into a medium
  5. 9. sound travels fastest through this type of material
  6. 12. a material that lets no light through
  7. 13. a material that lets all light through
  8. 16. a sound wave
  9. 17. energy that must travel through a medium
Down
  1. 1. a material that lets some light through
  2. 3. a light wave
  3. 4. light that we can see
  4. 7. energy that doesn't travel through a medium
  5. 10. the number of wavelengths in a given time
  6. 11. when light passes through a medium
  7. 14. when light bounces off of a surface
  8. 15. When light travels in a straight line