Electromagnetic Waves- waves created by vibrating electric charges, can travel through a vacuum or matter. have a wide variety of frequencies and wavelengths. All matter contains charged particles that are always in motion, so ALL objects emit electromagnetic waves.
Radiant Energy- Energy carried by an electromagnetic wave. Makes you able to see and feel warmth. Wave Speed- 300,000km/s “speed of light” Travel slowest in solids, fastest in gases. Photon- particle that explains how electromagnetic waves energy depends on frequency of the waves.
Range of Frequencies: 1. Radio Microwaves Radar MRI’s 2. Infrared 3. Visible Light 4. Ultraviolet 5. X Rays and Gamma Rays