Physics 9702 · AS & A Level · Errors and uncertainties

Errors and uncertainties — practice question

Using three different measuring instruments, $X$, $Y$ and $Z$, students measure the volume of a liquid. The actual volume of the liquid is $V$. Their measurements are shown. How many instruments are precise, and how many are accurate?

  • Anumber of precise pieces of equipment = 1, number of accurate pieces of equipment = 1
  • Bnumber of precise pieces of equipment = 1, number of accurate pieces of equipment = 2
  • Cnumber of precise pieces of equipment = 2, number of accurate pieces of equipment = 1
  • Dnumber of precise pieces of equipment = 2, number of accurate pieces of equipment = 2

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