| Term | Definition |
|---|
| Electromagnetic Waves | Transverse waves that transfer electric and magnetic energy. |
| Polarized Light | Light that vibrates in only one direction. |
| Electromagnetic Spectrum | The range of elctromagnetic waves placed in a certain order. |
| Radio Waves | Has the longest wavelength, and lowest frequencies. |
| Microwaves | Radiowaves with the shortest wavelength, and highest frequences. |
| Radar | A system of detecting reflected radio waves. |
| MRI | A process that uses radio waves to form pictures of the inside of a human body. |
| Infrared rays | Higher frequencies and shorter wavelengths than radio waves, under the color red. |
| Ultraviolet rays | Waves with frequencies higher than visable light, higher than violet, but lower than x-rays. |
| X-rays | Second highest energy level on the elctromagnetic spectrum. |
| Gamma Rays | Shortest wavelength, highest frequencies, highest energy level. |
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