Across
- 1. this object is usually used to divide light in experiments
- 5. this is slower than light, but allows you to hear lightning in a storm
- 6. image An image formed when the outgoing rays from a point on an object always diverge
- 9. these lens are thinner in the middle than the edges
- 11. this is seen as a sign of divided light after rain
- 12. light is actually small particles known as...
- 14. light is actually this type of energy
- 15. when light completely passes through an object
- 17. when light rays go apart
- 18. an opening to let light through
Down
- 2. image in the plane of convergence for the light rays from an object
- 3. an object has this if it is blocking rays of light
- 4. Where waves meet after a reflection
- 5. light can go around the earth this many times in a second
- 7. when light partially passes through an object
- 8. when light rays come together
- 10. these lens are thicker in the middle than the edges
- 13. light has different color because each color is a different...
- 16. light doesn't travel straigt but travels in...