CAPE Physics Unit 1 · 2002 · Paper 2 · Question 9(a)
Define 'tensile stress' and 'tensile strain'.
The mark scheme is shown once you've answered.
Practise this questionOther parts of this question
- 9(b)Show how is k related to the Young's Modulus E of the wire.[3 marks]
- 9(c)(i)Plot a graph of load against extension using the values from the table.[15 marks]
- 9(c)(ii)Use the graph plotted in (c)(i) to calculate the Young Modulus of Copper.[15 marks]
- 9(c)(iii)What is the maximum load that can be supported by the wire?[15 marks]
- 9(c)(iv)What was the stress at the proportional limit?[15 marks]
- 9(c)(v)Calculate the elastic energy stored in the wire just before the wire became permanently stretched.[15 marks]
More practice: the rest of this paper · more Mechanical Properties of Materials questions · all CAPE Physics Unit 1 past papers