Physics 0625 · IGCSE · Energy, work and power

Energy, work and power — practice question

Which row concerning the change of energy in the energy store has to be correct?

  • Aprocess: water pumped up to a high-altitude dam; energy store: gravitational potential energy of water; change of energy in store: increases
  • Bprocess: water pumped up to a high-altitude dam; energy store: kinetic energy of water; change of energy in store: decreases
  • Cprocess: air passes through a wind turbine; energy store: gravitational potential energy of air; change of energy in store: increases
  • Dprocess: air passes through a wind turbine; energy store: kinetic energy of air; change of energy in store: increases

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