Unit 3 EMR & Light

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Across
  1. 4. a lens that spreads parallel light rays away from a common point
  2. 9. a lens that brings parallel light rays toward a common point
  3. 10. a mirror with a reflecting surface that curves inward
  4. 12. a mirror with a reflecting surface that curves outward
  5. 13. the distance from the center line to the crest
  6. 14. three laws that describe the predictable pattern path light follows when it strikes a reflective surface
  7. 16. the idea that light travels in straight lines
  8. 18. the distance from one crest to another
Down
  1. 1. an extremely smooth, flat reflective surface
  2. 2. the process in which light passes through a medium and keeps travelling
  3. 3. the number of complete wavelengths that pass a point in one second
  4. 5. the process in which light bounces off the surface of an object and travels in another direction
  5. 6. the process in which light energy remains in the object that it strikes
  6. 7. the idea that light has particle-like properties
  7. 8. the process in which light changes direction when it moves from one medium to another
  8. 11. the idea that light has wave-like properties
  9. 15. a form of energy that includes radio waves and microwaves
  10. 17. a transparent object with at least one curved side that causes light to refract