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light and optics 1-3

QuestionAnswer
light The form of energy we can see.
artificial light source A human made source of light
Incandescence The emission of visible light by a hot object
fluorescence The process in which high energy, invisible ultraviolet light is absorbed by the particles of an object, which then emits some of this energy as visible light, causing the object to glow
phosphorescence The persistent emission of light following exposure to and removal of a source of radiation
chemiluminescence The emission of light resulting from chemical action and not involving heat
bioluminescence The emission of light produced by chemical reactions inside it's body to produce light
luminous Giving off its own light
transparent Allowing light to pass through
translucent Allowing some light to pass through. The light, however, is scattered from it's straight path
opaque Not allowing any light to pass through
Reflection The casting back of light from a surface
Angle of incident In optics, the angle between the incident ray and the normal
plane mirror A mirror having a flat surface
Law of reflection 1. The angle of incidence is equal to the angle of reflection. 2. The incident ray, the normal, and the reflected ray are always in the same plane.
Convex mirrors Mirrors that bulge out
Concave mirrors Mirrors that are caved in
Refraction The bending of light when it travels form one medium to another
Angle of reflection In optics, the angle between the normal and the reflected ray
convex lens lens that is thicker in the middle than around the edges. This causes the refracting light rays to come together ,or converge.
concave lens lens that is thinner and flatter in the middle then around the edges. Light passing through the thicker, more curved areas of lens will bend more then light passing through flatter edges.
Created by: carly.riddle
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