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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One type of
radioactive device that indicates the intensity of radiation with a clicking sound that increases in
frequency as more radiation is present is a(n) ____. a. | bubble
chamber | c. | electroscope | b. | cloud chamber | d. | Geiger counter | | | | |
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2.
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A helium
nucleus with two protons and two neutrons is called a(n) ____. a. | alpha
particle | c. | electroscope | b. | beta particle | d. | gamma ray | | | | |
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3.
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When the
strong force is not sufficient to hold unstable nuclei together permanently, ____. a. | nuclear fusion
occurs | c. | the nuclei
decay | b. | a solid becomes a liquid | d. | carbon-12 changes into carbon-14 | | | | |
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4.
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The process
by which nuclei having low masses are united to form nuclei with larger masses is
____. a. | a chain
reaction | c. | nuclear
fission | b. | a chemical reaction | d. | nuclear fusion | | | | |
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5.
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The three
types of nuclear radiation in increasing order of penetrating power are ____. a. | alpha, beta,
gamma | c. | X ray, beta,
gamma | b. | alpha, gamma, beta | d. | X ray, gamma, beta | | | | |
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6.
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Both a
fusion reaction and a fission reaction ____. a. | causes chain reactions | c. | take place at room temperature | b. | produce
energy | d. | use hydrogen as a
fuel | | | | |
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7.
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Neutrons
released in a fission reaction can strike other nuclei and cause ____. a. | a chain
reaction | c. | fusion
reactions | b. | an electron avalanche | d. | radioactive decay | | | | |
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8.
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Which of the
following elements is most likely to be produced during a nuclear fusion reaction in the
Sun? a. | helium-4 | c. | uranium-235 | b. | hydrogen-1 | d. | uranium-238 | | | | |
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9.
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When an
electroscope is given a(n) ____, its leaves repel each other and spread apart. a. | moving
particle | c. | negative
charge | b. | radioactive sample | d. | positive charge | | | | |
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10.
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When the
____ is not large enough to hold a nucleus together tightly, the nucleus can become
radioactive. a. | electric
force | c. | tracer | b. | strong force | d. | isotope | | | | |
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