AnswersGA-GSE Physical Science BIntroduction to Machines

Nuclear Energy Answers

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1
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Whose work predicted that mass could be converted into energy and vice versa?

A
Enrico Fermi
B
Otto Hahn, Lise Meitner, and Fritz Strassmann
C
Albert Einstein
2
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Which statements describe nuclear reactions? Check all that apply.Nuclear reactions involve the nuclei of atoms.Nuclear reactions involve the electrons of atoms.The products of nuclear reactions are lighter than the reactants.The products of nuclear reactions are heavier than the reactants. Fission produces energy, while fusion requires energy.

A
Nuclear reactions involve the nuclei of atoms.
B
Nuclear reactions involve the electrons of atoms.
C
The products of nuclear reactions are lighter than the reactants.
D
The products of nuclear reactions are heavier than the reactants.
E
Fission produces energy, while fusion requires energy.
3

Which statements accurately describe the waste generated by nuclear reactions? Check all that apply.It is hazardous for hundreds to thousands of years.Some waste can be recycled and used again.It is hazardous to living organisms forever.Some waste can be completely transformed into energy.It is not hazardous after a couple of years.

A
It is hazardous for hundreds to thousands of years.
B
Some waste can be recycled and used again.
C
It is hazardous to living organisms forever.
D
Some waste can be completely transformed into energy.
E
It is not hazardous after a couple of years.
4

The production of electricity from fission nuclear reactions in power plants is regulated by controlling

A
the amount of electrons available.
B
the amount of uranium available.
C
the amount of protons available.
D
the amount of neutrons available.
5

Electricity from fusion nuclear energy

A
is not possible.
B
accounts for less than 15 percent of current world electricity production.
C
has been achieved, but is not yet practical.
D
has been increasing for the past seventy years.

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