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3 Conservation of energy

3 Conservation of energy

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Question 52

A warehouse worker applies lubricant to the axle of a pulley system used to lift heavy crates.

Lubricating the pulley axle helps to:

A

decrease the gravitational potential energy gained by the crates

B

decrease the efficiency of the pulley system

C

increase the efficiency of the pulley system

D

increase the amount of energy wasted as thermal energy

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3 Conservation of energy Questions

  1. GCSE
  2. /Physics
  3. /3 Conservation of energy

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