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Thermal equilibrium — OCR GCSE Physics B Definition | GradeGen

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Physics
Key terms
Thermal equilibrium

GCSE Physics · key term

Thermal equilibrium

Definition

A state in which there is no net energy transfer between a body and its surroundings because they are at the same temperature.

Used by OCR

How each exam board covers it

OCR GCSE Physics B · J259

Paper 1, Paper 2

At a steady temperature, the total average power transferred to the water balances the power transferred from it to the surroundings. This maintained steady temperature is not necessarily thermal equilibrium with the surroundings.
Revise: Climate change and evidence

OCR Physics B past papers

Related key terms

Climate model
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