Across
- 2. The color you see from the color of light reflecting
- 5. A mirror that curves outward
- 7. A wave where the particles move parallel
- 9. The change in direction of a wave as it changes speed
- 11. A material that allows almost all light to pass through but its blurry
- 13. A wave that travels through matter
- 15. A material where the light doesn't pass
- 16. A material in which the wave travels
- 17. A transparent object with at least one curved side
- 18. A wave in which the disturbance is perpendicular
- 19. The number of times the pattern repeats
- 20. A wave that can move only through matter
Down
- 1. The passage of a wave off the surface
- 3. The change in direction of a wave
- 4. Maximum distance the wave moves from its position
- 6. A material that allows almost all of the light to pass through
- 8. When a wave bounces off the surface
- 10. Transfers energy by a wave
- 12. The distance between one point on a wave and another
- 14. A lens that's thicker at the edges than in the middle