Science Crossword

3. a copy of the object formed by reflected or refracted rays of light
5. this forms when light rays actually meet
6. a transverse wave that involves the transfer of electric and magnetic energy
8. a material that reflects or absorbs all of the light that strikes it
11. when light causes an electron to move so much that it is knocked out of metal
17. each packet of light energy
18. occurs when parallel rays of light hit an uneven surface
19. light waves as straight lines
20. a flat sheet of glass that has a smooth, silver colored coating on one side
21. the point at which rays parallel to the optical axis reflect and meet
22. a material that scatters the light that passes through it
23. when the three primary colors of light are combined in equal amounts
24. an imaginary line that divides a mirror in half

1. the image you see in a plane mirror
2. two primary colors combine in equal amounts to produce this
4. colored substances that are used to color other materials
6. the energy that electromagnetic waves transfer through matter or space
7. a mirror with a surface that curves inward like the inside of a bowl
9. a mirror with a surface that curves out-ward
10. a color that is produced when the three primary colors of pigments are combined in equal amounts
12. any two colors that combine to form white light are called this
13. this occurs when parallel rays of light hit a smooth surface
14. a material that transmits most of the light that strikes it
15. three colors that can combine to make any other color
16. the light that passes through a polarized filter