A-LevelPhysicsDeformation of solidsMay/June 2024Paper 1 Q191 Mark

Two wires, P and Q, made of the same material, are stretched with an increasing force. A graph is plotted of the variation with force of the extension of each wire. [Figure 19.1] The wires have the same original length but different diameters. What is the ratio (diameter of wire Q) / (diameter of wire P)?

Q: What topic does this question test?

This question tests Deformation of solids in A-Level Physics (syllabus code 9702). It is worth 1 mark.

A1/3

B1/√3

C√3

✓ Correct Answer

The correct answer is C: √3

📋 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 Deformation of solids in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics May/June 2024 examination, Paper 1 Variant 2.

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