Electromagnetic Waves

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Electromagnetic waves

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Can travel through empty space and through matter.

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Radiant energy

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Energy carried by an electromagnetic wave; also known as electromagnetic energy.

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Electromagnetic spectrum

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Entire range of electromagnetic waves with different frequencies and wavelengths.

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Broadcasting

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Use of electromagnetic waves to send information in all directions.

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Carrier wave

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Electromagnetic wave that a radio or television station uses to carry its sound or image signals.

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Amplitude modulation

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Change in the amplitude of a carrier wave.

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Frequency modulation

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Change in the frequency of a carrier wave.

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Global Positioning System (GPS)

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A worldwide navigation system that uses satellite signals to determine a receiver's location.

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Encode

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Convert into a coded form.

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Transmit

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Send from one person or place to another.