Across
- 3. the lowest point on a wave
- 4. the highest point on a wave
- 5. something that is in a middle position
- 8. the distance between a wave
- 10. do not allow transmission of light waves
- 11. allows some frequencies of visible light to pass through but not all
- 12. waves vibrate in the same direction that the wave travels
Down
- 1. the maximum distant moved on a point
- 2. the medium to move perpendicular to the direction of the wave
- 6. a change in the direction of waves as they pass from one medium to another.
- 7. an instance of reflecting
- 9. longitudinal waves that travel through a medium like air or water
- 13. form of energy with which a human eye makes the things visible.