Physics GCSE
uncontrolled chain reaction
What uncontrolled chain reaction means in Physics GCSE, as defined for AQA.
Definition of uncontrolled chain reaction
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Reference: AQA
A chain reaction in which more than one neutron from each fission goes on to cause a further fission, so the number of fissions doubles or triples with every generation.
Topics that use uncontrolled chain reaction
- Nuclear fission (AQA GCSE)
Related terms
- chain reaction
- control rods
- energy released per fission
- energy transfer to thermal store
- fissions per second
- kinetic energy of fragments
- meltdown
- moderator and coolant
Using uncontrolled chain reaction in the exam
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