Physics 9702 · AS & A Level · Stress and strain

Stress and strain — practice question

A wire with a uniform cross-section is formed from a metal whose Young modulus is $1.3 \times 10^{11}\,\text{Pa}$. Its length is $2.4\,\text{m}$, and its spring constant is $2.7 \times 10^{4}\,\text{N m}^{-1}$. What is the volume of the wire?

  • A$2.6 \times 10^{-8}\,\text{m}^3$
  • B$6.3 \times 10^{-8}\,\text{m}^3$
  • C$5.0 \times 10^{-7}\,\text{m}^3$
  • D$1.2 \times 10^{-6}\,\text{m}^3$

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