Question detail
What is the primary difference between nuclear fusion and nuclear fission?
Try the question, check the answer, then read the explanation to understand the curriculum point.
At a glance
MCQ
Type
practice
Style
Topic
Nuclear fission and fusion
Question
- A. Fusion involves splitting large nuclei, while fission involves joining light nuclei.
- B. Fusion involves joining light nuclei, while fission involves splitting large nuclei.
- C. Both processes release energy but only fission produces neutrons.
- D. Fusion occurs in stars, while fission is used in nuclear reactors.
Answer
The correct answer is B: Fusion involves joining light nuclei, while fission involves splitting large nuclei..
Explanation
The correct answer is B: Fusion involves joining light nuclei, while fission involves splitting large nuclei.. This supports the learning objective "(Physics only) Compare nuclear fusion with nuclear fission." in Nuclear fusion (physics only) because it uses the correct atomic and nuclear radiation relationship for Nuclear fission and fusion. The other options are less suitable because they do not match the required Nuclear fusion (physics only) idea: Fusion involves splitting large nuclei, while fission involves joining light nuclei.; Both processes release energy but only fission produces neutrons.; Fusion occurs in stars, while fission is used in nuclear reactors..
Common mistake
Confusing Fusion and Fission
Students often confuse nuclear fusion with nuclear fission, thinking both processes are the same.
Remember that fusion is the joining of two light nuclei to form a heavier nucleus, while fission is the splitting of a large unstable nucleus.
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