matter

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Across
  1. 2. perpendicular to wave motion
  2. 7. radiation energy that move through space
  3. 9. phenomenon of light
  4. 10. interference when two waves overlap i
  5. 11. wave travels
  6. 13. speed the distance a wave travels in a given amount of
  7. 14. substance that transfers the energy
  8. 15. distance between successive crests
  9. 16. Spectrum distribution of electromagnetic radiation
Down
  1. 1. Effect change in frequency
  2. 3. as in casting back a light or heat, mirroring,
  3. 4. interference waves come together and cancel out
  4. 5. the spreading of waves
  5. 6. the rate at which something occurs
  6. 8. wave he medium is parallel to the direction
  7. 12. maximum displacement