Energy stores, transfers and conservation

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Question 73
Easy

A student sets up an experiment to measure the efficiency of energy transfer when using a small electric motor to lift a 150 g mass.

A schematic diagram of the experimental setup showing a small electric motor connected to a power supply, mounted on a laboratory stand. A piece of string is wound around the motor's spindle to lift a hanging mass.

Explain one way the student could modify this apparatus to reduce the amount of wasted energy.

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Energy stores, transfers and conservation Questions

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