A-LevelPhysicsPhysical quantities and units9702/12 · Feb/Mar 2022 · Q31 Mark

A man of mass 75.2 kg uses a set of weighing scales to measure his mass three times. He obtains the following readings. mass/kg reading 1 80.2 reading 2 80.1 reading 3 80.2 Which statement describes the precision and accuracy of the weighing scales?

Anot precise to ± 0.1 kg and accurate to ± 0.1 kg

Bnot precise to ± 0.1 kg and not accurate to ± 0.1 kg

Cprecise to ± 0.1 kg and accurate to ± 0.1 kg

Dprecise to ± 0.1 kg and not accurate to ± 0.1 kg

✓ Correct answer

D: precise to ± 0.1 kg and not accurate to ± 0.1 kg

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Topic: Physical quantities and units, A-Level Physics (syllabus 9702). Multiple choice, 1 mark.
Source: A-Level Physics, Feb/Mar 2022 Paper 1 Variant 2, question 3.

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