Multiple Choice
Identify the
letter of the choice that best completes the statement or answers the question.
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1.
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Oscillating electrons generate changing ____ fields. a. | electric | c. | radio | b. | magnetic | d. | both a and b | | | | |
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2.
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The
____ is the particle that carries radiant energy. a. | proton | c. | neutron | b. | photon | d. | electron | | | | |
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3.
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The
____ of light determines whether a radiation will eject electrons. a. | frequency | c. | amplitude | b. | intensity | d. | speed | | | | |
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4.
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Electromagnetic radiation with the shortest wavelengths is ____. a. | gamma
rays | c. | radio
waves | b. | ultraviolet waves | d. | infrared waves | | | | |
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5.
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Your
body needs ____ to make vitamin D. a. | infrared waves | c. | visible light waves | b. | microwaves | d. | ultraviolet
waves | | | | |
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6.
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Carrier waves are in the wavelengths of ____. a. | microwaves | c. | radio
waves | b. | infrared waves | d. | light waves | | | | |
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7.
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Television uses ____ to transmit signals. a. | microwaves | c. | visible light
waves | b. | infrared waves | d. | radio waves | | | | |
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