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SCIENCE CH. ELEVEN

TermDefinition
Electromagnetic Waves Waves that are created by vibrating electric changes.
Radiant Energy Energy carried by an electromagnetic wave.
Speed of Light The speed at which light travels in a vacuum.
Photon Mass less energy containing particle that electromagnetic waves sometimes act like.
Radio Waves Electromagnetic wave with wavelength longer than about 10 Cm.
Microwaves Electromagnetic waves with wavelength between .1 mm and 30 cm.
Infrared Electromagnetic wave with a wavelength between 1 mm and 700 billionths of a meter.
Visible Electromagnetic waves with wavelengths of 700 to 400 billionths of a meter that can be detected by human eyes.
Ultraviolet Electromagnetic wave with wavelength between 400 billionths to 10 billionths of a meter.
X-Rays Electromagnetic wave with wavelength between about 10 billionths of a meter and 10 trillionths of a meter often used for medical imaging.
Gamma Rays Electromagnetic wave with a wavelength less than about 100 trillionths of a meter; usually emitted from a decaying atom nucleus.
Carrier Wave specific frequency that a radio station is assigned and uses to broadcast signals.
FM Frequency Module
AM Amplitude Modulation
Cathode Ray Tube A vacuum tube in which a hot cathode emits a beam of electrons that pass through a high voltage anode
Transceiver Device that transmits radio signals at one frequency and receives radio signals at a different frequency.
GPS A system of satellites and ground monitoring stations that enable a receiver to determine it's location at or above Earth's surface.
Created by: brendelfirst
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