Light Energy

1234567891011121314151617181920
Across
  1. 3. Imaginary line perpendicular to reflecting surface
  2. 6. Allows all light through
  3. 7. Reflection from a rough surface
  4. 10. Absorbs or reflects all light
  5. 13. Light is a part of the _ Spectrum
  6. 14. Allows some light through
  7. 15. If light is not transmitted or reflected, it is
  8. 18. Lens that brings light rays together
  9. 19. Determines the type of electromagnetic radiation
  10. 20. The bouncing back of light
Down
  1. 1. The angle of incidence equals the angle of reflection
  2. 2. Can only be seen in a mirror
  3. 4. Color of light made up of all visible colors
  4. 5. Perfectly flat surface
  5. 8. Lens that spreads out light rays
  6. 9. The bending of light due to a change in its velocity
  7. 11. Can separate light into a rainbow
  8. 12. Color object that absorbs all other colors
  9. 16. Reflection from a smooth surface
  10. 17. A visible form of electromagnetic radiation