Unit 3 Cross Word

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