| A | B |
|---|
| Electromagnetic Wave | Waves produced by a vibrating electric field - travel at speed of light |
| Electromagnetic Spectrum | The full range of electromagnetic waves |
| Radio waves | Low energy - low frequency - long wavelength - communications |
| Microwaves | Used for cell phones & cooking |
| Infrared Waves | Emitted as heat - heat lamps, night vision |
| Visible Light | ROYDBIV - red longest wavelength & least energy. Violet shortest & most energy |
| Ultraviolet | UV sun ray's. Damage skin, kills bacteria |
| X-Rays | Pass thru soft tissue, reflected by bone. |
| Gamma Rays | Highest frequency, shortest wavelength. Used to treat cancer |
