light vocab

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Across
  1. 3. Wave This energy travels in a wave that is partly electric and partly magnetic.
  2. 5. massless bundles of concentrated electromagnetic energy
  3. 6. Materials that absorb light without re-emission and thus allow no light through.
  4. 7. A total shadow.
  5. 8. Light Electromagnetic waves of frequencies lower than the red of visible light.
Down
  1. 1. Materials that transmit light.
  2. 2. Light Electromagnetic waves of frequencies higher than those of violet.
  3. 4. Year The distance light travels in one year.
  4. 5. A partial shadow
  5. 9. A thin beam of light.