| A | B |
|---|
| electromagnetic wave | disturbance that transfers energy through a field |
| radiation | energy that moves in the form of EM waves |
| electromagnetic spectrum | range of all EM frequencies |
| radio waves | EM waves with lowest wave lengths and frequencies |
| microwaves | EM waves with shorter wavelengths and frequencies, but higher than radio waves |
| visible light | part of EM spectrum that human eyes can see |
| infrared light | part of the spectrum that consists of EM frequencies between microwaves and visible light |
| ultraviolet light | part of EM spectrum consists of frequencies above those of visible light and partially below those of x-rays |
| x-rays | frequency of 10^16- 10^21 |
| gamma rays | freqeuncy of 10^19-10^24 |
| incandescence | production of light by high temperatures |
| luminescence | production of light without high temperatures |
| bioluminescence | production of light by living organisms |
| flourescence | when materials absorb EM radiations of one wavelength and gives off EM radiation to another |
| transmission | passage of an EM wave through a medium |
| absorption | dissapearance of an EM wave into the medium |
| scattering | spreading of light rays in all directions |
| polarization | quality of light in which all ot its waves vibrate in the same direction |
| prism | a tool that uses refraction to spread out the different wave lengths that make up white light |
| primary colors | red, green, and blue |
| primary pigments | cyan, yellow, and magenta |
