Nuclear

What nuclear process occurs in the sun?

• fission

• fusion

• endothermic

• atomic bomb

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Fusion changes hydrogen into what?

• helium

• uranium

• U-238

• U-235

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

NGSS.HS-PS1-8

Which of the following terms best describes the other product besides energy of nuclear power?

• Useful

• Hazardous (unsafe)

• Harmless

• none

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NGSS.HS-ETS1-3

A major scientific concern over nuclear energy is how to--

• store the waste products safely

• reduce the high levels of carbon dioxide emitted into the air

• deal with the large amounts of fossil fuels required

• prevent the depletion of the ozone layer

In nuclear fusion, smaller atoms are forced together to create larger atoms. Does this process release, absorb or maintain energy?

• Absorb energy

• Maintain energy

• Release energy

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NGSS.HS-ESS1-1

NGSS.HS-ESS1-3

Define nuclear fusion.

• Nuclear fusion – combining lighter atoms to make heavier ones – is what makes it possible.

• Nuclear fusion – splitting lighter atoms to make heavier ones – is what makes it possible.

• Nuclear fusion – combining heavier atoms to make lighter ones – is what makes it possible.

• Nuclear fusion – splitting heavier atoms to make lighter ones – is what makes it possible.

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

particles that are located in the nucleus of an atom and no charge

• proton

• neutron

• electron

• dust

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NGSS.HS-PS1-8

Nuclear fusion is the reaction that generates energy in stars.

• True

• False

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NGSS.HS-ESS1-1

Why does nuclear fusion require high pressures and temperatures?

• To provide enough energy to split the nucleus.

• The two nuclei are both negatively charged and repel each other.

• To lower the cost.

• To overcome the electrostatic repulsion of the nuclei.

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8

Which element is used as the fuel in nuclear fusion reactions?

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8