Across
- 4. is the passage of a wave through a medium
- 5. bouncing of a wave off a surface
- 6. transparent object with at least one cured side that causes light to change direction
- 7. number of times the patter repeats in a given time
- 10. wave in which the disturbance is perpendicular to the direction the wave travels
- 15. change in direction of a wave when it travels by the edge of an object
- 17. wave that travels only through matter
- 19. distance between one point on a wave to the same point on the next wave
Down
- 1. thicker in the middle
- 2. causes particles in a medium to move the direction the waves travels
- 3. Allows almost all of the light striking it to pass through, clearly
- 8. thicker on the edges than the middle
- 9. lowest point of a wave
- 10. allows most light to pass through , but blurry
- 11. maximum distance that the wave moves from in rest position
- 12. material in which a wave travels
- 13. highest point of a wave
- 14. light doesn't pass through
- 16. the change in direction of a wave as it changes speed while moving from one object to another
- 18. transfer of energy by a wave to the medium through which it travels