O-LevelPhysicsEnergy & Work5054/12 · May/June 2020 · Q191 Mark

The main stages in the operation of a coal-fired power station are listed. They are not in the correct order. 1 The turbine turns a generator. 2 Water in the boiler becomes hot. 3 Steam turns a turbine. 4 Burning coal produces thermal energy. 5 Electromagnetic induction produces electrical energy. 6 Steam is produced. The flow chart shows the first two stages. What is the correct order for the remaining stages?

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A6 → 3 → 1 → 5

B6 → 1 → 3 → 5

C1 → 6 → 3 → 5

D6 → 3 → 5 → 1

✓ Correct answer

A: 6 → 3 → 1 → 5

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Topic: Energy & Work, O-Level Physics (syllabus 5054). Multiple choice, 1 mark.
Source: O-Level Physics, May/June 2020 Paper 1 Variant 2, question 19.

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