Across
- 1. When a wave changes directions as it travels around by the edge of an object or through an opening.
- 4. The number of times the pattern in a wavelength repeats in a given time.
- 5. Waves travel through this.
- 9. Transfer of energy by a wave to a medium.
- 11. Bouncing of a wave on a surface.
- 12. Most of the light passes through an object but the images are still blurry.
Down
- 2. Passage of a wave through a medium.
- 3. A transparent object with at least one curved side that makes light change direction.
- 6. Causes particles to move parallel in the direction the wave travels.
- 7. The change in direction of a wave as it changes speed while moving from one medium to another.
- 8. Zero light passes through these objects.
- 10. A wave that only travels under water.