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Lesson 5
| Term | Definition |
|---|---|
| Transparent | a type of material that transmits light without scattering it. |
| translucent | a type of material that scatters light as it passes through |
| opaque | a type of material that reflects or absorbs all of the light tha strikes it. |
| diffuse reflection | reflection that occurs when parallel light rays hit an uneven surface and all reflect at different angles. |
| convex | a mirror that curves outward or lens that is thicker in the center than at the edges |
| focal point | the point at which light rays parallel to the optical axis meet after being reflected or refracted by a mirror or lens |
| concave | a mirror with a surface that curves inward or a lens that is thicker in the center than at the edges. |
| compare | to tell the way two or more things are alike or different |