Physics 0625 · IGCSE · Physical quantities and measurement techniques

Physical quantities and measurement techniques — practice question

A student wants to calibrate a mercury-in-glass thermometer using a $^\circ\text{C}$ scale. Which values should she choose for the lower fixed point and the upper fixed point?

  • Alower fixed point: melting point of ice; upper fixed point: boiling point of mercury
  • Blower fixed point: melting point of ice; upper fixed point: boiling point of water
  • Clower fixed point: melting point of mercury; upper fixed point: boiling point of mercury
  • Dlower fixed point: melting point of mercury; upper fixed point: boiling point of water

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