Chapters 23-2 and 23-3 Vocabulary
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Created by:
justinmonica888 on December 4, 2011
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Mrs. Hogan's chapters 23-2 and 23-3 Vocabulary
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16 terms
Terms | Definitions |
|---|---|
 ray | an arrow that can show the path and direction of a light wave |
| plane mirror | a mirror with a flat surface |
| virtual image | an image through which light does not actually travel (an image formed by a plane mirror and concave mirror) |
| concave mirrors | mirrors that are curved inward |
| optical axis | a straight line drawn outward from the center of the mirror |
| focal point | the single point where light beams entering the mirror parallel to the optical axis are reflected through |
| focal length | the distance between the mirror's surface and the focal point |
| real images | an image through which light actually passes (formed by concave mirrors) |
| convex mirrors | mirrors that curve out toward you |
| convex lens | lens that are thicker in the middle then at the edges |
| concave lens | lens that are thinner in the middle that at the edges |
| cornea | a transparent membrane that protects the eye |
| pupil | the opening to the inside of the eye |
| iris | the colored part of the eye |
| retina | the back surface of the eye |
| rods and cones | receptors in the retina that detects the light forming the real image |
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