Across
- 2. the ability to do work
- 5. allowing nearly all light rays to pass through a material
- 8. energy of motion
- 11. the transfer of heat by moving a liquid or gas
- 12. allowing no light rays to pass through a product
- 13. the movement of heat between two objects that are touching
Down
- 1. the bouncing of light off a surface
- 3. a characteristic of sound that makes it seem high or low
- 4. the bending of light
- 6. to take in light waves
- 7. allowing some light rays to pass through a material
- 9. the number of waves that pass a point in a certain amount of time
- 10. stored energy