Across
- 2. Electromagnetic waves that people can see
- 5. The lowest point on a wave
- 7. the substance that is used to transfers evergy from one thing to another
- 9. The highest part of a wave
- 10. The type of waves that can travel through a vacuum
- 11. sudden change in the direction of of a wave that strikes the boundary between different mediums
- 12. The type of wave with the least amount of energy
- 13. The distance between successive crests or troughs is called
Down
- 1. where two waves are completely out of phase
- 3. The wave with the most amount of energy
- 4. Spreading of waves around obstacles
- 6. change in direction of a wave passing from one medium to another caused by its change in speed
- 8. Can not travel through a vacuum