AnswersLVA-Earth and Space Science 1cr.Nuclear Fission and Nuclear Fusion

Nuclear Fission and Nuclear Fusion Answers

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1
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Which is a characteristic of nuclear fusion but NOT nuclear fission?

A
releases large amounts of energy
B
is the energy source of stars
C
is used in electric power plants
D
requires little energy to occur
2
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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.
3

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.
5

Which best describes what forms in nuclear fusion?

A
two smaller, more stable nuclei
B
two larger, less stable nuclei
C
one smaller, less stable nucleus
D
one larger, more stable nucleus
6

Which element is nuclear fusion least likely to produce?

A
hydrogen, which has an approximate mass of 1
B
chlorine, which has an approximate mass of 35
C
argon, which has an approximate mass of 39
D
silicon, which has an approximate mass of 28
7

Which is a characteristic of nuclear fusion?

A
produces radioactive waste
B
involves the collision of two nuclei
C
commonly used by humans as an energy source
D
requires very little activation energy
8

Which equation represents a fission reaction?

A
mc009-1.jpg
Option A
B
mc009-2.jpg
Option B
C
mc009-3.jpg
Option C
D
mc009-4.jpg
Option D
9

Which statement is true about this reaction?

Question illustration
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.
10

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.

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