Physics 0625 · IGCSE · Thermal properties and temperature

Thermal properties and temperature — practice question

On a cold day, a metal measuring tape marked in millimetres is used to find the separation between two fence posts. The reading on the tape is $3.000\,\text{m}$. On a much hotter day, the same metal measuring tape is then used again to measure the length of that same distance. The metal measuring tape is at a higher temperature than the ground, while the ground temperature stays unchanged. Which statement is correct?

  • AThe measuring tape reads less than $3.000\,\text{m}$ because the graduations are closer together.
  • BThe measuring tape reads less than $3.000\,\text{m}$ because the graduations are further apart.
  • CThe measuring tape reads more than $3.000\,\text{m}$ because the graduations are closer together.
  • DThe measuring tape reads more than $3.000\,\text{m}$ because the graduations are further apart.

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