PHY ch.5- Chain Reactions, Nuclear Reactors & Atomic Bombs
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15 Terms
1
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is a series of events, and each event is caused by the previous one
A chain reaction:
\
\-is always nuclear
\-is a collection of chains attached to each other
\-is a series of events, and each event is caused by the previous one
\-is always extremely dangerousill
\
\-is always nuclear
\-is a collection of chains attached to each other
\-is a series of events, and each event is caused by the previous one
\-is always extremely dangerousill
2
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illness from Anthrax
Which of the following does not represent exponential growth?
\
\-A computer virus
\-illness from Anthrax
\-spread of small pox
\-biological viruses
\
\-A computer virus
\-illness from Anthrax
\-spread of small pox
\-biological viruses
3
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about one cup
The smallest container that could contain one critical mass of plutonium is:
\
\-about one cup
\-a large suitcase
\-the trunk of an automobile
\-a table spoon
\
\-about one cup
\-a large suitcase
\-the trunk of an automobile
\-a table spoon
4
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neutron-induced fission
The foundation of nuclear weapons is:
\
\-carbon-14 isotope
\-boiling water that warms up nuclei
\-powerful lasers
\-neutron-induced fission
\
\-carbon-14 isotope
\-boiling water that warms up nuclei
\-powerful lasers
\-neutron-induced fission
5
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Because more neutrons are emitted in plutonium fission than in uranium fission.
The critical mass for a bomb based on uranium fission is different than that for plutonium fission. Why?
\
\-Because they have different densities
\-Because more neutrons are emitted in plutonium fission than in uranium fission.
\-Because uranium is lighter than plutonium
\-Because uranium is heavier than plutonium
\
\-Because they have different densities
\-Because more neutrons are emitted in plutonium fission than in uranium fission.
\-Because uranium is lighter than plutonium
\-Because uranium is heavier than plutonium
6
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uranium
The bomb dropped in Hiroshima used as its fuel:
\
\-hydrogen
\-uranium
\-deuterium and lithium-6
\-plutonium
\
\-hydrogen
\-uranium
\-deuterium and lithium-6
\-plutonium
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a Pu-239 bomb
An implosion bomb is required for:
\
\-a thermonuclear bomb
\-a boosted fission weapon
\-a U-235 bomb
\-a Pu-239 bomb
\
\-a thermonuclear bomb
\-a boosted fission weapon
\-a U-235 bomb
\-a Pu-239 bomb
8
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fission fragments
The dangerous radioactivity in fallout comes from:
\
\-neutrinos
\-fission fragments
\-neutrons
\-gamma rays
\
\-neutrinos
\-fission fragments
\-neutrons
\-gamma rays
9
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steam
In a nuclear power plant, the material that runs through the turbine is:
\
\-fission fragments
\-electrons
\-neutrons
\-steam
\
\-fission fragments
\-electrons
\-neutrons
\-steam
10
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the meltdown of nuclear fuel
The term China syndrome refers to:
\
\-production of plutonium in China
\-the accident at Chernobyl
\-meltdown of nuclear fuel
\-nuclear terrorism
\
\-production of plutonium in China
\-the accident at Chernobyl
\-meltdown of nuclear fuel
\-nuclear terrorism
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strontium-90
One of the most dangerous radioactive materials from fallout is:
\
\-plutonium-239
\-deuterium
\-uranium-235
\-strontium-90
\
\-plutonium-239
\-deuterium
\-uranium-235
\-strontium-90
12
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the nuclear reactor depends on slow neutrons
A nuclear reactor cannot explode like a nuclear bomb because:
\-it is carefully designed to shut down quickly.
\-it contains too much uranium.
\-it contains no uranium.
\-the nuclear reactor depends on slow neutrons.
\-it is carefully designed to shut down quickly.
\-it contains too much uranium.
\-it contains no uranium.
\-the nuclear reactor depends on slow neutrons.
13
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underground
According to the textbook, the least bad place to put nuclear waste is:
\
\-underground
\-in our food
\-in the Sun
\-all the way into outer space
\
\-underground
\-in our food
\-in the Sun
\-all the way into outer space
14
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Pu-239
The material that might be “reprocessed” from nuclear waste is:
\
\-Pu-239
\-U-235
\-U-238
\-tritium
\
\-Pu-239
\-U-235
\-U-238
\-tritium
15
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DNA
PCR involves:
\
\-DNA
\-carbon-14
\-tritium
\-heavy water
\
\-DNA
\-carbon-14
\-tritium
\-heavy water