Electromagnetic Spectrum and Light
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27 terms
Terms | Definitions |
|---|---|
 electromagnetic waves | a form of energy that can travel through space |
| electric field | a field of force surrounding a charged particle |
| magnetic field | the region around a magnet where the magnetic force is exerted |
| electromagnetic radiation | a form of energy that exhibits wavelike behavior as it travels through space |
| photoelectric effect | The emission of electrons from a metal when light shines on the metal |
| photons | particles of light |
| intensity | high level or degree |
| electromagnetic spectrum | the entire frequency range of electromagnetic waves |
| amplitude | the height of a wave's crest |
| modulation | (electronics) the transmission of a signal by using it to vary a carrier wave |
| frequency modulation | modulation of the frequency of the (radio) carrier wave |
| thermograms | color-coded pictures that show variations in temperature |
| transparent | easily understood or seen through (because of a lack of subtlety) |
| translucent | allowing light to pass through |
| opaque | not letting light through; not clear or lucid; dense, stupid |
| image | someone who closely resembles a famous person (especially an actor) |
| regular reflection | This occurs when light bounces off an object at the same angle it hit the object; the resulting image would be clear |
| diffuse reflection | The reflection of waves in many directions from a rough surface |
| mirage | optical illusion |
| polarized light | light that vibrates in only one direction |
| scattering | spreading widely or driving off |
| luminous | giving off light |
| incandescent | emitting light as a result of being heated |
| fluorescence | light emitted during absorption of radiation of some other (invisible) wavelength |
| phosphor | a solid material that can emit light by fluorescence |
| laser | a device that produces intense beams of light |
| coherent light | light of only one wavelength that travels with its crests and troughs aligned |
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