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GCSE Combined Science · key term
A device that transfers energy from motion into electrical energy.
Used by AQA and OCR
Specification 4.8.2.4 · Paper 3, Paper 4
Revise: Energy ResourcesThe steam turns a turbine, which drives a generator to produce electricity. The turbine provides the rotation; the generator produces the electrical output.
Specification P6.2a · Physics Paper 2
A device that transfers energy mechanically supplied by rotation into energy transferred electrically.
When comparing electricity generation, identify both the shared stages and what drives the turbine. Solar cells are an exception: they do not use a turbine or generator.
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Many power stations use the same basic sequence: a moving fluid turns a turbine, and the turbine drives a generator. The generator transfers energy electrically. What changes between resources is how the fluid is made to move.
Physics, Combined Science
A device that transfers energy mechanically to an electrical output by relative movement between a magnet and a wire.
Revise: Energy Resources, Electricity Generation and Usage TrendsMost electricity generation follows a shared pattern: something turns a turbine, and the turbine drives a generator. The turbine has blades that are pushed by moving steam, water or air.
