Exam-style question
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In particle physics, what does the term 'exchange particle' refer to?.
- A.A particle that is created during a collision.
- B.A particle that mediates forces between other particles.
- C.A particle that is emitted during radioactive decay.
- D.A particle that has no mass.
Model answer
What a good answer should say
- A particle that mediates forces between other particles.
Explanation
Why this works
Exchange particles are responsible for transmitting forces in particle interactions, such as the photon for electromagnetic forces.
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