Question detail
What role does high pressure play in nuclear fusion?
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. It decreases the temperature needed for fusion
- B. It helps nuclei collide in fusion conditions
- C. It prevents the formation of heavier nuclei
- D. It reduces the energy output of the reaction
Answer
The correct answer is B: It helps nuclei collide in fusion conditions.
Explanation
The correct answer is B: It helps nuclei collide in fusion conditions. This supports the learning objective "(Physics only) Explain that high temperature is needed to overcome electrostatic repulsion between nuclei." 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: It decreases the temperature needed for fusion; It prevents the formation of heavier nuclei; It reduces the energy output of the reaction.
Common mistake
Misunderstanding Electrostatic Repulsion
Students often think that high temperature is solely needed for fusion to occur without understanding that it specifically overcomes the electrostatic repulsion between positively charged nuclei.
Emphasize that high temperature provides the kinetic energy necessary for nuclei to collide with enough force to overcome their repulsive forces, enabling fusion.
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