Physics 0625 · IGCSE · Energy, work and power

Energy, work and power — practice question

A tidal barrage (dam) generates electricity from the tides. Fig. 5.1 shows a simplified diagram of a tidal barrage (dam). The diagram includes labels for the incoming tide, high tide, water flowing in from the ocean, turbine and river; and the outgoing tide, low tide, water flowing back to the ocean.
(a)[1]

The water held behind the barrage (dam) is an energy store. State the name of this stored energy.

(b)[3]

Explain how the tidal barrage (dam) generates electricity.

Worked solution & mark scheme

This 4-mark question has a full step-by-step worked solution and mark scheme. One marking point: This is $(Gravitational) potential energy$.

  • Full mark scheme, point by point
  • Step-by-step worked solution
  • Write your answer & get it marked instantly by AI