Waves, Sound and Light

12345678910111213141516171819
Across
  1. 6. stored energy
  2. 8. longest wavelength visible to humans
  3. 12. reflected sound wave
  4. 14. the distance from crest to crest or trough to trough
  5. 16. part of a sound wave where atoms spread out
  6. 17. the color we see when no light is reflected
  7. 18. number of waves per second
  8. 19. the color we see when green light is reflected
Down
  1. 1. part of a sound wave where atoms collide
  2. 2. wave just too short for humans to see it
  3. 3. created when a plane flies faster than the sound it produces
  4. 4. longest wavelength of electromagnetic radiation
  5. 5. the color we see when all wavelengths are reflected
  6. 7. low point of a wave
  7. 9. ray highest frequency of electromagnetic radiation
  8. 10. light waves are bent when they move into a different substance
  9. 11. energy of motion
  10. 13. high point of a wave
  11. 15. waves transfer ________
  12. 16. waves bounce off a surface