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