Across
- 5. transfer of energy of a wave to matter
- 7. a device that amplifies light
- 10. does not require a medium
- 12. number of waves passed in a amount of time
- 15. distance between crest and peak
Down
- 1. definite relative to the direction of propagation
- 2. time to complete one cycle of a phenomenon
- 3. moves parallel
- 4. the bending of waves
- 6. can be seen by the human eye
- 8. The greatest distance in particles
- 9. the bouncing back or change in a direction of a wave after it strikes a barrier
- 11. sprial arms
- 13. the bending of a wave as it passes from one material to another
- 14. moves perpendicularly