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- The study of light
- Optics
- the bending of a wave when it enters a medium where its speed is different
- Refraction
- work by refraction; by the light bending when moving between two substances
- Lenses
- Looks like the sides have caved in
- Concave
- the middle is bigger than the ends
- Convex
- where the parallel rays meet
- Focus
- what you look at; the actual thing
- Object
- what you think you see; the object enlarged, reduced or moved
- Image
- shiny boundaries in which light reflects
- Mirrors
- The change in direction of a wave, away from a boundary the wave encounters
- Reflection
- How our eyes think light comes from
- Straight Lines
- this focuses the light and makes distant objects appear brighter, clearer and magnified
- Telescope
- employs visible light to detect small objects,
- Microscope
- allows light to enter and creates an image by causing a chemical reaction on photo film
- Camera
- light rays come together
- convergent
- light rays spread apart
- divergent