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Materials

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Question 6

The table below shows some data on two wires P and Q.

WireYoung modulus of material / GPa\text{GPa}GPaCross-sectional area of wire / mm2\text{mm}^2mm2
P1101.2
Q1802.2

The wires P and Q have the same original length. The tension in each wire is the same. Both wires obey Hooke's law.

What is the value of the ratio extension of Pextension of Q\displaystyle \frac{\text{extension of P}}{\text{extension of Q}}extension of Qextension of P​?

A

0.33

B

1.5

C

3.0

D

4.5

Markscheme

Materials Questions

  1. A Level
  2. /Physics
  3. /Materials

15 exam-style questions on OCR A A Level Physics Materials, covering Springs and Mechanical properties of matter. Each one has a worked solution and a mark scheme showing where the marks go.

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