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Light waves
| Term | Definition |
|---|---|
| Convex | A mirror that curves outwards or lens that is thicker in the center than at the edges. |
| Concave | A mirror that curves inwards or has a lens thinner at the center than the edges. |
| Focal point | The point at which light rays parallel to the optical axis meet after being reflected (or refracted) |
| Diffuse reflection | Reflection that occurs when parallel light rays hit an uneven surface and all reflect at different angles. |
| Translucent | A type of material that scatters light as it passes through. |
| Transparent | A type of material that transmits light without scattering it. |
| Opaque | A type of material that reflects or absorbs all of the light that strikes it. |
| Black | Absorbs all light |
| White | Reflects all light |
| Color we see | Color it reflects |
| Filter | A transparent material that can absorb certain colors |
| Seismic waves | A mechanical wave that travels through earth like objects during an earthquake |
| Seismograph | An instrument that can detect and record seismic waves |