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1.1 Energy changes in a system, and the ways energy is stored before and after such changes

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Question 20
H

A spring is stretched by an increasing force. Above a force of 8.0 N the graph of force against extension is no longer a straight line. Which explains why the equation for elastic potential energy cannot be used above 8.0 N?

[1]
A

the spring constant of the spring becomes zero above this force

B

the limit of proportionality of the spring has been exceeded

C

the spring stores thermal energy instead of potential energy

D

the extension of the spring becomes too large to measure

Markscheme

1.1 Energy changes in a system, and the ways energy is stored before and after such changes Questions

  1. GCSE
  2. /Physics
  3. /1.1 Energy changes in a system, and the ways energy is stored before and after such changes

40 exam-style questions on AQA GCSE Physics 1.1 Energy changes in a system, and the ways energy is stored before and after such changes, covering 1.1.1 Energy stores and systems, 1.1.2 Changes in energy, 1.1.3 Energy changes in systems, and 1.1.4 Power. Each one has a worked solution and a mark scheme showing where the marks go.

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