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GCSE Physics · key term
The splitting of a large, unstable nucleus into two smaller nuclei, with the release of energy and neutrons.
Used by AQA, Edexcel and OCR
Specification 4.4.4.1 · Paper 1
The splitting of a large, unstable atomic nucleus into two smaller nuclei, with the release of neutrons, gamma rays and energy.
Revise: Nuclear fissionNuclear fission occurs when one of these large, unstable nuclei splits.
Specification 6.37P, 6.38P, 6.39P, 6.44P · Paper 1
The splitting of a large nucleus into smaller nuclei, accompanied by a release of energy.
Revise: Nuclear Energy SourcesIn nuclear fission, a large nucleus such as a uranium nucleus splits into two smaller nuclei. Energy is released, along with neutrons. Fission is the nuclear process used as the energy source in present-day nuclear power stations: energy from the reaction ultimately produces heating, which can be used in generating electricity.
The splitting of a large atomic nucleus into two smaller daughter nuclei, accompanied by emitted neutrons and a release of energy.
The splitting of a heavy atomic nucleus into smaller nuclei, releasing energy and usually neutrons.
The splitting of a heavy atomic nucleus into two smaller nuclei, releasing energy and usually further neutrons.
Specification P6.2d · Paper 2 (Foundation), Paper 4 (Higher)
The splitting of an unstable atomic nucleus into smaller nuclei, releasing energy.
Revise: Nuclear fissionSome large nuclei are unstable and can split into two smaller nuclei. This splitting is called nuclear fission; the smaller products are called daughter nuclei. Energy is released in the process.
Paper 1, Paper 2
Revise: Nuclear energyNuclear fission is the splitting of a large, unstable nucleus into two smaller nuclei. Some isotopes of uranium and plutonium can undergo fission.
If asked to recall nuclear energy sources, name all three: nuclear fission, nuclear fusion and radioactive decay.
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