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Chap12: Electro

QuestionAnswer
Carrier Wave Specific frequency that a radio station is assigned and uses to broadcast signals.
Cathode-Ray Tube Sealed vacuum tube that produces one or more beams of electrons that produce an image when they strike the coating on the inside of a TV screen.
Electromagnetic wave Waves created by vibrating electric charges, can travel through a vacuum or through matter, and have a wide variety of frequencies and wavelengths.
Gamma Rays Electromagnetic waves with no mass and no charge that travels at the speed of light and is usually emitted with alpha or beta particles from a decaying atomic nucleus.
Global Positioning System A system of satellites and ground monitoring stations that enable a receiver to determine its location at or above Earth's surface.
Infrared waves Electromagnetic waves that have a wavelength between 1mm and 750 billionths of a meter.
microwaves Radio waves with wavelengths between 1 m and 1mm.
photon Particle that electromagnetic waves sometimes behave like.
radiant energy Energy carried by an electromagnetic wave.
radio waves Electromagnetic waves with wavelengths longer than 1mm, used for communications.
transceiver Device that transmits one radio signal and receives another radio signal at the same time, allowing a cordless phone user to talk and listen at the same time.
ultraviolet waves Electromagnetic waves with wavelengths between about 400 billionths and 10 billionths of a meter.
visible light Electromagnetic waves with wavelengths of 750 to 400 billionths of a meter that can be detected by human eyes.
X rays Electromagnetic waves with wavelengths between about 10 billionths of a meter and 10 trillionths of a meter, that are often used for medical imaging.
Created by: mrscummings
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