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10.3 Electrical energy and power

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Question 34
F

A battery-operated motor lifts a load at constant speed. Its casing becomes warmer. Which statement correctly describes the changes in energy stores?

[1]
A

The battery thermal store decreases; the load kinetic store and casing chemical store increase.

B

The battery chemical store decreases; the load kinetic store and casing thermal store increase.

C

The battery thermal store decreases; the load gravitational store and casing chemical store increase.

D

The battery chemical store decreases; the load gravitational store and casing thermal store increase.

Markscheme

10.3 Electrical energy and power Questions

  1. GCSE
  2. /Physics
  3. /10.3 Electrical energy and power

105 exam-style questions on Edexcel GCSE Physics 10.3 Electrical energy and power, covering 10.3.1 The heating effect of an electric current, 10.3.2 Reducing energy transfer in wires, 10.3.3 Advantages and disadvantages of the heating effect, 10.3.4 Energy transferred by an electrical circuit, 10.3.5 Electrical power, and 10.3.6 Energy transfers in domestic devices. Each one has a worked solution and a mark scheme showing where the marks go.

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