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CAIE A-Level Physics P3.3 Tables and Significant Figures

Practise recording raw and calculated data in correctly headed tables with consistent precision, justified decimal places and significant figures.

Syllabus
2028–2030
Course
Physics 9702
Level
AS

Exam points

  • present raw and calculated data in a correctly headed table with consistent precision
  • justify appropriate precision or significant figures in recorded and calculated quantities

P3.3-Tables, recording and significant figures question 1

[Maximum number: 1]

A micrometer is used to measure the 28.50 mm width of a plastic ruler. The micrometer reads to the nearest 0.01 mm .

What is the correct way to record this reading?

A

0.02850±0.01 m0.02850 \pm 0.01 \mathrm{~m}

B

0.0285±0.001 m0.0285 \pm 0.001 \mathrm{~m}

C

(2.850±0.001)×10−2 m(2.850 \pm 0.001) \times 10^{-2} \mathrm{~m}

D

(2.850±0.001)×10−3 m(2.850 \pm 0.001) \times 10^{-3} \mathrm{~m}

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