Physics 0625 · IGCSE · Energy, work and power

Energy, work and power — practice question

A coal-fired power station produces electricity. The coal is burned, and the energy given out is used to heat water until it boils. The steam from the water causes the generator to rotate, which produces electricity. What terms describe the energy stored in the coal and the energy of the generator when it is moving?

  • Acoal: chemical; generator: hydroelectric
  • Bcoal: chemical; generator: kinetic
  • Ccoal: geothermal; generator: hydroelectric
  • Dcoal: geothermal; generator: kinetic

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