Astronomy: The Universe Online Practice

Question

Complete this assessment to review what you’ve learned. It will not count toward your grade.
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Question
Which statements about nuclear fission and nuclear fusion are true? Select the two correct answers. (1 point)
Responses

They both occur in the nucleus of an atom.
They both occur in the nucleus of an atom.

They both involve one atom splitting into two atoms.
They both involve one atom splitting into two atoms.

They both involve two atoms fusing into one atom.
They both involve two atoms fusing into one atom.

They both release large amounts of energy.

Answer 1

The two correct statements about nuclear fission and nuclear fusion are:

1. They both occur in the nucleus of an atom.
2. They both release large amounts of energy.

Nuclear fission involves the splitting of a heavy atomic nucleus into smaller nuclei, while nuclear fusion involves the merging of light atomic nuclei to form a heavier nucleus. Both processes release significant amounts of energy.