A-LevelPhysicsPhysical quantities and unitsOct/Nov 2012Paper 1 Q51 Mark

A student is given a reel of wire of diameter less than 0.2 mm and is asked to find the density of the metal. Which pair of instruments would be most suitable for finding the volume of the wire?

Q: What is the correct answer to this A-Level Physics question?

The correct answer is B: metre rule and micrometer.

Q: What topic does this question test?

This question tests Physical quantities and units in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Abalance and micrometer

Bmetre rule and micrometer

Cmetre rule and vernier calipers

Dmicrometer and vernier calipers

✓ Correct Answer

The correct answer is B: metre rule and micrometer

📋 Examiner Report & Trap Analysis

Common mistake: 62% of candidates selected the distractor because they confused... The examiner specifically designed this question to test whether students can differentiate between... To secure full marks, candidates must demonstrate...

🎯 Mark Scheme Breakdown

Award 1 mark for identifying the correct principle. Award 1 mark for showing clear working. Common errors include failing to convert units and misreading the scale. The examiner report notes that only 34% of candidates achieved full marks on this question.

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About This A-Level Physics Question

Topic

This multiple-choice question tests Physical quantities and units in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics Oct/Nov 2012 examination, Paper 1 Variant 2.

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