Physics GCSE
moderator and coolant
What moderator and coolant means in Physics GCSE, as defined for AQA.
Definition of moderator and coolant
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Reference: AQA
Neutrons collide with atoms in the moderator to slow down, and energy is transferred to the coolant, which is pumped to a heat exchanger to boil water.
Topics that use moderator and coolant
- 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
- neutron absorption
Using moderator and coolant in the exam
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