Energy stores, transfers and conservation

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Question 11
Easy

An electric winch is used on a small boat to lift an anchor.

Figure 1 is an energy diagram for the electric motor inside the winch.

Energy flow diagram for a winch motor. An input arrow on the left is labelled 'Total electrical energy input = 15,500 J'. This splits into a straight output arrow labelled 'Useful kinetic energy output = 11,200 J' and a downward output arrow representing wasted energy transferred to the surroundings.

Calculate how much energy is wasted by the motor.

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Energy stores, transfers and conservation Questions

  1. GCSE
  2. /Physics
  3. /Energy stores, transfers and conservation