Nuclear Fission and Nuclear Fusion Answers
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Which is a characteristic of nuclear fusion but NOT nuclear fission?
A
releases large amounts of energyB
is the energy source of starsC
is used in electric power plantsD
requires little energy to occur2
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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.3
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.4
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.5
Which equation represents a fission reaction?
A
Option
B
Option
C
Option
D
Option
6
Research into nuclear fusion will likely require a large investment of time and money before it might be used as an energy source. Which statement best describes the benefits that would make the investment worthwhile?
A
Fusion requires a large amount of energy and occurs in stars.B
Fusion produces large amounts of energy, and the fuel is found on Earth.C
Fusion produces no radioactive waste, and the fuel is plentiful.D
Fusion requires little energy to begin and would continue through a chain reaction.7
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.8
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 energy9
Which element is nuclear fusion least likely to produce?
A
hydrogen, which has an approximate mass of 1B
chlorine, which has an approximate mass of 35C
argon, which has an approximate mass of 39D
silicon, which has an approximate mass of 2810
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.Did you find these answers helpful?
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