Nuclear Radiation Answers
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How does critical mass play a role in nuclear reactions?
A
It is the minimum amount of material needed to start a fission reaction.B
It is the minimum amount of material needed to start a fusion reaction.C
It is the minimum amount of material needed to sustain a fission reaction.D
It is the minimum amount of material needed to sustain a fusion reaction.2
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Which equation demonstrates that nuclear fusion forms elements that are heavier than helium?
A
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B
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C
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D
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3
Which is a characteristic of nuclear fusion?
A
produces radioactive wasteB
involves the collision of two nucleiC
commonly used by humans as an energy sourceD
requires very little activation energy4
Which statement is true about this reaction?
A
It is a practical source of energy on Earth.B
It occurs only outside the solar system.C
Its product is heavier than each of its reactants.D
It shows the critical mass of an element.5
According to most scientists, cold fusion
A
will not be a practical source of energy on Earth.B
would be a practical source of energy on Earth if it were less expensive.C
will be a practical source of energy on Earth within the next few decades.D
will always continue to be a practical source of energy on Earth.6
Which best describes nuclear fission?
A
A nucleus spontaneously splits and absorbs energy.B
Two nuclei spontaneously combine and absorb energy.C
A nucleus collides with a neutron and splits, releasing energy.D
Nuclei combine to form a heavier nucleus, releasing energy.7
Why is it important for scientists to replicate each other’s experiments?
A
to determine if important scientific results are repeatableB
to help the research of other scientistsC
to determine if slight alterations in the experiment can affect the resultD
to further their own research8
Which is most likely why many scientists reject the cold fusion theory?
A
There is too much waste involved in the process.B
Cold fusion experiments have been conducted at room temperature only.C
The process does not produce enough energy to meet the needs of modern humans.D
The original results have not been replicated consistently and reliably.9
Which statement is true about nuclear fusion?
A
It is caused by the same process that causes nuclear fission.B
It does not occur naturally in the solar system.C
It has very low activation energy.D
It produces nearly all the elements that are heavier than helium.10
Both nuclear fusion and nuclear fission reactions
A
release radioactive waste.B
involve the splitting of atoms.C
are utilized in nuclear power plants.D
release large amounts of energy.Did you find these answers helpful?
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