Nuclear Changes and Energy Quiz

Which of the following processes involves the splitting of a heavy nucleus into two lighter nuclei, releasing energy?

• Fusion

• Fission

• Radioactive decay

• Ionization

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NGSS.HS-PS1-8

What is the primary difference between nuclear fission and nuclear fusion?

• Fission combines nuclei, while fusion splits them.

• Fission releases energy, while fusion absorbs energy.

• Fission splits nuclei, while fusion combines them.

• Fission occurs in stars, while fusion occurs in nuclear reactors.

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Which of the following is a common product of radioactive decay?

• Helium nucleus

• Hydrogen atom

• Oxygen molecule

• Carbon atom

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During nuclear fusion, which of the following occurs?

• Two light nuclei combine to form a heavier nucleus.

• A heavy nucleus splits into two lighter nuclei.

• An electron is emitted from the nucleus.

• A neutron is absorbed by the nucleus.

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NGSS.HS-PS1-8

What type of energy is primarily released during nuclear fission?

• Chemical energy

• Thermal energy

• Electrical energy

• Mechanical energy

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Which of the following best describes the process of radioactive decay?

• The nucleus of an atom loses energy by emitting radiation.

• Two nuclei combine to form a heavier nucleus.

• A nucleus splits into two or more smaller nuclei.

• Electrons are added to the outer shell of an atom.

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What is the role of neutrons in the process of nuclear fission?

• Neutrons are absorbed to stabilize the nucleus.

• Neutrons initiate the fission process by colliding with the nucleus.

• Neutrons are emitted as a byproduct of fission.

• Neutrons are converted into protons during fission.

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NGSS.HS-PS1-8

Which of the following is an example of a nuclear reaction that occurs naturally in the sun?

• Nuclear fission

• Nuclear fusion

• Radioactive decay

• Ionization

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