Atom, Electromagnetic Radiation, and Waves

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Across
  1. 2. ____ starts at the long end of the visible spectrum, when you can't see the radiation any longer.
  2. 8. See color, good resolution.
  3. 9. _____ waves are made by electrons (not the innermost electrons) changing shells or by free electrons.
  4. 10. ____ are not E-M waves. High end of our frequency scale.
  5. 11. _____ are produced by the innermost electrons of an atom changing shells or the slowing down of electrons.
  6. 12. This was the first experiment to show light acted like a wave - it interfered with itself.
  7. 13. If you are far sighted (can see far but not near) your glasses will be ____.
  8. 15. Lenses are in the opposite order from a telescope.
  9. 17. In the eye the ____ adjusts to permit seeing color on both cloudy and sunlit day.
  10. 18. You use ____ to find out about things that are reflecting signals back to you.
Down
  1. 1. Particles go in straight lines unless they hit something, waves bend around corners.
  2. 3. The shortest radio waves are ____.
  3. 4. The most energetic form of E-M energy is the _____.
  4. 5. People with insensitive ____ will be left in the dark.
  5. 6. Telescope must be kept at the same temperature to prevent warping. For astronomers to take picture.
  6. 7. The wavelength ranges between 4,000 to 7000 angstroms.
  7. 14. Particles are definitely at some spot; waves are spread out.
  8. 16. Fixed lens that keeps dust out and allows a thinner adjustable lens.