Question 1
Question detail
What is a chain reaction in 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. A process where two light nuclei combine
- B. A series of repeated fission events triggered by emitted neutrons
- C. The absorption of neutrons by control rods
- D. The release of energy from a stable nucleus
Answer
The correct answer is B: A series of repeated fission events triggered by emitted neutrons.
Explanation
The correct answer is B: A series of repeated fission events triggered by emitted neutrons. This supports the learning objective "(Physics only) Explain how emitted neutrons can cause further fission events." in Nuclear fission (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 fission (physics only) idea: A process where two light nuclei combine; The absorption of neutrons by control rods; The release of energy from a stable nucleus.
Common mistake
Misunderstanding Neutron Role
Students often confuse the role of emitted neutrons in fission, thinking they only contribute to the initial fission event rather than causing subsequent fission events.
Emphasize that emitted neutrons can initiate further fission reactions by colliding with other large nuclei, leading to a chain reaction.
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