Fission Fusion

How much of the total energy used in the United States is created by nuclear fission reactors?

• 1%

• 19%

• 68%

• 90%

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In nuclear reactions--

• a large amount of matter produces a small amount of energy.

• a small amount of matter produces a large amount of energy.

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The splitting of a nucleus into smaller nuclei is

• fusion

• fission

• half-life

• gamma radiation

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This is an example of...

• Fission  reaction

• Fusion reaction

• Decomposition reaction

• Decay

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Do all stars make energy through fusion?

• Yes

• No

• Just our sun

• Only large stars

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Requires temperatures of millions of degrees?

• Fission

• Fusion

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NGSS.HS-PS1-8

Nuclear fusion releases energy when:

• heavy ions fuse together

• very light nuclei fuse together

• uranium splits into two fragments

• uranium emits a neutron

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NGSS.HS-ESS1-3

NGSS.HS-PS1-8

The following is what type of equation?

• Fission

• Fusion

• Alpha Decay

• Beta Decay

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Takes two small nuclei and combines them into a larger nucleus

• fission

• fusion

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NGSS.HS-PS1-8

Where does fusion occur naturally?

• Underwater

• All around us

• In the radioactive waste

• On the sun

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NGSS.HS-ESS1-1

NGSS.HS-PS1-8