Term
|
Definition
| a form of energy you can see |
|
|
Term
|
Definition
| a light source made by or from nature |
|
|
Term
|
Definition
| light spreads out from a certain object such as the sun |
|
|
Term
|
Definition
| an energy transfer that does not require matter |
|
|
Term
|
Definition
| light that has traveled via radiation |
|
|
Term
|
Definition
| an artificially made light source |
|
|
Term
| incadescent source of light |
|
Definition
| a light source made by an object heated to such a high temperature that it radiates light |
|
|
Term
|
Definition
| the emission of visible light by a heated object |
|
|
Term
|
Definition
| the process where an object absorbs high energy ultra violet light and then emits some of it as light |
|
|
Term
|
Definition
| the persistent emission of light following exposure and removal of a source of radiation |
|
|
Term
|
Definition
| the emission of light from a chemical action and not involving heat |
|
|
Term
|
Definition
| the emission of light produced by chemical reactions inside the bodies of living creatures |
|
|
Term
|
Definition
|
|
Term
|
Definition
| a substance that does not give off its own light |
|
|
Term
|
Definition
| a unit of electrical energy, the amount of energy transmitted by one thousand watts of power in an hour |
|
|
Term
|
Definition
| a model based on the observation that light travels in a straight line |
|
|
Term
|
Definition
| a model of light based on the observation that light travels in a straight line |
|
|
Term
|
Definition
| a single line or narrow beam of light that originates from a light source and that may bounce off a surface it strikes |
|
|
Term
|
Definition
| a representation of the path of light by using a straight line with an arrow |
|
|
Term
|
Definition
| allowing light to pass through |
|
|
Term
|
Definition
| allows some light to pass through. the light, however, is scattered from a striaght line. |
|
|
Term
|
Definition
| not allowing any light to pass through |
|
|
