| Question | Answer |
|---|---|
| Translucent | Allows only some light to pass through |
| Transparent | Allows light to pass through |
| Opaque | Does not allow light to pass through |
| Reflection | Light bounces off an object |
| Refraction | Light bends when it moves from one material to another |
| Convex lens | A lens that is thicker in the middle and makes objects appear larger |
| Concave lens | A lens that is thinner in the middle and makes an object appear smaller |
| What is the difference between transparent, opaque, and translucent? | Transparent allows light to pass through. Translucent allows SOME light to pass through. Opaque does NOT allow light to pass through. |
| Give examples of materials that are transparent | Clear glass, clear plastic, saran wrap, clear glass beads |
| Give examples of materials that are translucent | Wax paper, tissue paper, frosted glass |
| Give examples of materials that are opaque | Rocks, trees, books, computers, people |
| How is light reflected and refracted? | When light is REFLECTED it BOUNCES off an object but when light is REFRACTED it BENDS when it moves from one material to another. |
| Explain how light reflects off of a mirror | The light hits the surface of the mirror and bounces off at the same angle. |
| What is the difference between a convex and a concave lens? | CONVEX lens is thicker in the middle (thin on the edges) and makes objects appear larger but CONCAVE lens is thinner in the middle (thick on the edges) and makes objects appear smaller |
| Where is a convex lens used? | Microscopes, magnifying glass, eyes, eyeglasses, camera lens |
| Where is a concave lens used? | Camera viewfinder, eyeglasses, telescopes |
| Explain how a prism works | White light goes into the prism and is refracted. The prism separates the light into its component colors. |
