Light Waves

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Across
  1. 3. Light travels at different speeds in different mediums (a straw looks like it is split in a cup of water)
  2. 5. An object that allows SOME light to pass through is said to be ________
  3. 9. The most dangerous type of light (most energy) (2 words/no space)
  4. 10. What type of waves are used to transmit cellular telephone messages?
  5. 12. An object that allows NO light to pass through is said to be _________
  6. 13. When all the colors of the rainbow combine, it forms _______ (2 words/no space)
  7. 15. Type of light that can give you a sun tan or skin cancer if you get to much
  8. 16. The colors of the rainbow (visible light) are abbreviated as _______
  9. 18. As the frequency of a wave increases, what happens to the energy level? it ____________
  10. 20. What happens when light hits a smooth and shiny surface
  11. 23. Light on the EM spectrum is organized by the amount of ________ it has.
  12. 24. What moves faster than the speed of light?
  13. 25. The number of waves per second
  14. 27. The EM wave with the shortest wavelength.
  15. 29. The shorter the wavelength, the ______ the frequency.
  16. 30. Light does not need a ________ to travel (unlike sound)
  17. 31. The EM wave that has the longest wavelength (2 words/no space)
  18. 32. Light travels as a _________ wave
Down
  1. 1. When waves combine (this is the explanation for how noise canceling headphones work)
  2. 2. Large amounts of gamma radiation turned Bruce Banner into the ______
  3. 4. As light moves into a medium with a higher density, the speed of light _______
  4. 6. Your microwave at your home uses what type of light to heat up your food?
  5. 7. This type of EM wave is associated with heat energy
  6. 8. The longer the wavelength, the ______ the frequency.
  7. 11. When light passes through and opening, it spreads out and gets bigger
  8. 14. When light hits a barrier/material, it can bounce off that barrier
  9. 17. The only part of the EM spectrum that humans can see (2 words/no space)
  10. 19. Dangerous waves that are used to see bones inside of your body
  11. 21. Which electromagnetic waves have the longest wavelengths and lowest frequencies? (2 words/no space)
  12. 22. Where does light travel the fastest?
  13. 26. An object that allows ALL light to pass through is said to be ________
  14. 28. Light travels as this type of wave
  15. 33. All forms of light on the EM spectrum have different levels of this