Unit 3

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Across
  1. 3. what comes after visable light
  2. 6. The wave with the most amount of energy
  3. 9. sudden change in the direction of of a wave that strikes the boundary between different mediums
  4. 10. motion in which all points on a wave oscillate along paths at right angles to the direction of the wave's advance
  5. 12. the substance that is used to transfers evergy from one thing to another
  6. 13. The number of different types of electromagnetic waves
  7. 14. change in direction of a wave passing from one medium to another caused by its change in speed
  8. 15. Spreading of waves around obstacles
Down
  1. 1. Electromagnetic waves that people can see
  2. 2. Can not travel through a vacuum
  3. 4. where two waves are completely out of phase
  4. 5. The distance between successive crests or troughs is called
  5. 7. The highest part of a wave
  6. 8. The type of wave with the least amount of energy
  7. 10. The lowest point on a wave
  8. 11. The type of waves that can travel through a vacuum