| incondesence | | when light rays cross in front of the mirror or virtual image (where light rays cross inside of the mirror) |
| luminescence | | when light is emmited by a material that has not been heated |
| fluorescence | | is the image closer/farther/the same distance as the object in front of a mirror |
| phosphorescense | | is either larger/smaller/or the same size as the object in front of the mirror |
| chemiluminesence | | this occurs when parallel rays that reflect do not go through the focal point |
| bioluminescense | | a perpendicular line from the point of incidence |
| wavelength | | the item placed in front of the mirror |
| reflection | | a ray of light that starts at the point of incidence and it heads away from the surface |
| medium | | where the principal axis meets the mirror |
| incident ray | | light that is produced by biochemical reactions in living things |
| angle of incidents | | a mirror whose reflective surface curves outwards |
| normal line | | very much like fluorescence, but the material absorbing the UV light can emit visible light for minutes or hours |
| reflected ray | | a ray of light coming in towards a surface |
| angle of reflection | | the distance from one crest or trough to the next crest or trough of a wave |
| object | | when light is emmitted from a material because it gets hot from a high temperature of the material |
| image | | is the image upright or inverted? |
| plane mirror | | when light is released during a chemical reaction but without a rise in temperature |
| location | | a mirror whose reflecting surface curves inwards |
| orientation | | the angle between the reflected ray and the normal line |
| size | | the substance through which light travels, eg. air, water, vacuum |
| type | | the angle between the incident ray and the normal line |
| concave mirror | | a mirror with a flat reflective surface |
| principal axis | | the reflection of the item inside the mirror |
| focal point | | the point through which all parallel light rays reflect to in a concave mirror |
| vertex | | the change in direction of a light ray when it bounces off a surface |
| spherical abberation | | a line going through the centre of curvature and it is also a normal line |
| convex mirror | | when light is emmited because material is exposed to ultra-violet rays |
