2. Electricity
Key learning objectives
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gcse · physics · AQA Combined · All papers
Releases 1 August 2026
Ultimate and Lifetime users can create one saved set of 4 extended-response questions for this topic and mark answers with examiner-style feedback.
Examiner-style long-answer practice with automatic marking, improvement advice and ProofCoach tracking.
standard
Simple fuel heating apparatus
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Kettle energy transfer
| useful energy transferred (J) | time (s) |
|---|---|
| 1.38 x 10^5 | 60 |
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Rate of energy loss from a roof
| roof type (category) | energy loss rate (W) |
|---|---|
| uninsulated | 620 |
| insulated | 210 |
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Home energy improvements
| improvement (category) | installation cost (GBP) | annual saving (GBP per year) |
|---|---|---|
| loft insulation | 300 | 150 |
| double glazing | 2400 | 120 |
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