Rate of energy transfer
What Rate of energy transfer means in Physics GCSE, as defined for AQA, OCR.
Definitions of Rate of energy transfer
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Reference: AQA
How quickly energy passes across a material; a high thermal conductivity means a high rate for the same temperature difference and thickness.
How quickly energy passes through a wall to the cooler outside; a thicker wall slows it, so the building cools more slowly.
Power, measured in watts, where 1 W equals 1 J transferred each second.
Topics that use Rate of energy transfer
- Energy transfers in a system (AQA GCSE)
- Power and efficiency (OCR GCSE)
- Simple circuits (OCR GCSE)
Related terms
- Efficiency
- Energy transferred
- Lubrication
- thermal conductivity
- thermal insulation
- Battery as chemical store versus mains a.c. supply
- Cell polarity conventions
- comparing insulators
Using Rate of energy transfer in the exam
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