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3.1 Energy stores and calculations

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Question 48

A battery operates a motor that raises a load. The table shows the energy changes during one lift. The load starts and finishes at rest.

Energy change	Energy in $J\mathrm{J}$
Decrease in the battery's chemical store	500
Increase in the load–Earth gravitational store	320
Increase in thermal stores of motor and wires	120

How much energy is transferred to the surroundings in addition to the changes listed?

[1]

$J60\ \mathrm{J}$

$J180\ \mathrm{J}$

$J300\ \mathrm{J}$

$J940\ \mathrm{J}$

Markscheme

3.1 Energy stores and calculations Questions

GCSE
Physics
3.1 Energy stores and calculations

121 exam-style questions on Edexcel GCSE Physics 3.1 Energy stores and calculations, covering 3.1.1 Gravitational potential energy, 3.1.2 Kinetic energy, and 3.1.3 Energy transfers and conservation of energy. Each one has a worked solution and a mark scheme showing where the marks go.

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