Across
- 3. passage of light through an object
- 6. wavelengths each second that pass
- 7. direction changes when through an object
- 12. only passes through matter
- 14. particles move parallel to the wave
- 16. goes through empty space and matter
- 17. reflection is equal to the way it hit
- 19. gives energy one place to another
Down
- 1. particles are farthest apart
- 2. particles are closest together
- 4. perpendicular to the wave
- 5. material a wave travels through
- 8. highest point on a transverse wave
- 9. the bouncing of a wave of a surface
- 10. when overlapping waves combine
- 11. direction changes when a wave changes speed
- 13. maximum distance a wave moves
- 15. lowest point on a transverse wave
- 18. energy from a wave to the medium
- 19. length from point to point on waves