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GCSE Physics · key term
The spreading of energy into less useful stores, usually the thermal stores of the surroundings.
Used by AQA, Edexcel and OCR
Specification 4.1.2.1 · Paper 1
The spreading of energy into less useful stores, usually the thermal energy stores of objects and their surroundings.
Revise: Energy Systems, Conservation and DissipationDissipation therefore reduces the amount of energy available for the intended purpose, without reducing the total amount of energy.
Specification 3.8, 3.9, 8.10, 10.23, 10.26 · Paper 1, Paper 2
Revise: Dissipation of EnergySome energy is transferred into the thermal stores of objects and the surroundings. It then becomes spread among many particles over a wide area. This spreading into less useful stores is called dissipation.
The spreading of energy into the surroundings so that it becomes less useful.
Dissipation is the spreading of energy into less useful stores, often the internal energy stores of the surroundings.
The spreading of energy into the surroundings so that it becomes less useful, while the total amount of energy is conserved.
The spreading of energy into the surroundings, making it less useful.
Paper 1, Paper 2
Revise: Energy Conservation, Dissipation and InsulationIn real changes, energy commonly spreads into the thermal stores of objects and their surroundings. This is called dissipation. The energy still exists, but once it is dispersed through a large environment it is difficult to transfer back into a useful form.
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