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| waves that can travel through empty space, have a wide range of wavelengths, and are produced by charged particles |
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| energy carried by an electromagnetic wave |
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| range of electromagnetic waves with different frequencies and wavelengths |
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| lowest-frequency electromagnetic waves that carry the least amount of energy and are used in most forms of telecommunications technology |
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| electromagnetic wave that is sensed as heat and is emitted by almost every object |
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| electromagnetic waves with wavelengths between .7 and .4 millionths of a metter that can be seen with your eyes |
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| electromagnetic waves with higher frequencies and shorter wavelengths than visible light |
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| high-energy electromagnetic wave that is highly penetrating |
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| highest-frequency, most penetrating electroagnetic wave |
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| particular transmission frequency assigned to a radio station |
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| Global Positioning System |
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| uses satellites, ground-bsed stations and portable units with recievers to locate objects on Earth |
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| energy carried by an electromagnetic wave |
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| What force field surrounds the earth? |
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| What device converts sound into an electic signal? |
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| What can detect radio waves? |
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