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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The type of
radioactive particle that can be stopped by a sheet of paper is the ____. a. | alpha
particle | c. | gamma
ray | b. | beta
particle | d. | uranium | | | | |
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2.
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The most
penetrating type of radiation is the ____. a. | alpha particle | c. | gamma ray | b. | beta particle | d. | uranium | | | | |
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3.
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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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4.
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An
instrument that detects radiation by means of a superheated liquid is a ____. a. | bubble
chamber | c. | Geiger
counter | b. | cloud chamber | d. | photographic plate | | | | |
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5.
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The
discovery of radioactivity by Henri Bequerel involved a ____. a. | bubble
chamber | c. | Geiger
counter | b. | chain reaction | d. | photographic plate | | | | |
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6.
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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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7.
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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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8.
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For which of
the following problems would a scientist most likely use carbon-14? a. | to calculate the age of
the Earth's oldest rocks | b. | to calculate the age of a piece of bone | c. | to identify the
elements that make up a rock | d. | to identify the elements that make up a bone | | |
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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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If a source
of radiation is placed near ____ cells, atoms in the cells can be ionized and can die or stop
growing. a. | thyroid | c. | heart | b. | fat | d. | cancer | | | | |
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