Across
- 4. Lines that are curved or straight
- 7. The lens and mirrors focus
- 9. An image that is always inverted and the light rays intersect
- 10. The change in direction of a wave passing from one medium to another caused by its change in speed.
- 11. It is in the middle.
- 12. An image that has virtual rays intersecting
- 15. what do you call it when light rays intersect?
Down
- 1. the measurement from the base to top
- 2. when something is put upside down or in the opposite position, order, or arrangement.
- 3. What do you call it when the light rays go apart from each other?
- 4. The return of light
- 5. What has a reflective surface?
- 6. Lines that travel but never touch
- 8. that are perpendicular to the wavefront
- 13. A reflection or refraction of an object
- 14. a piece of glass that is transparent with curved sides