Energy stores, transfers and conservation

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Question 41
Easy

An adventurer slides down a long, steep zip line from a high platform. At the bottom, they notice that the metal pulleys and bearings in the trolley assembly feel very warm to the touch.

Diagram of a zip line trolley assembly showing the pulley wheels on a steel cable with axles/bearings.

Explain, in terms of work done and energy stores, why the trolley assembly becomes warm as it travels down the cable.

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Energy stores, transfers and conservation Questions

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