Across
- 4. a lens that is thicker in the middle than at the edges
- 5. a material through which light does not pass
- 7. energy carried by an electromagnetic wave
- 9. law that states that when a wave is reflected from a surface, the angle of reflection is equal to the angle of incidenc
- 12. a mirror that curves inward
- 13. reflection of light from a rough surface
- 14. a mirror that curves outward
- 15. a material that allows most of the light that strikes it to pass through, but through which objects appear blurry
Down
- 1. an image of an object that your brain perceives to be in a place where the object is no
- 2. the change in direction of a wave as it changes speed in moving from one medium to another
- 3. an image that forms where rays converge
- 6. reflection of light from a smooth, shiny surface
- 8. a lens that is thicker at the edges than in the middle
- 9. electromagnetic radiation that you can see
- 10. the point where light rays parallel to the optical axis converge after being reflected by a mirror or refracted by a lens
- 11. a transparent object with at least one curved side that causes light to change direction