Physics (AS & A Level) · Oct / Nov 2017 · Paper 13 · Question 21

A load is hung from the end of a metal wire. The load is increased and the wire stretches elastically. The table shows the length of the wire for different loads. | load / kN | length / mm | |---|---| | 0 | 500.0 | | 1.0 | 502.0 | | 2.0 | 504.0 | | 3.0 | 506.0 | | 4.0 | 508.0 | When the load is 4.0 kN, what is the strain energy stored in the wire?

1. A16 J
2. B32 J
3. C1.0 kJ
4. D2.0 kJ

As printed in the paper