A-LevelPhysicsDeformation of solidsOct/Nov 2019Paper 1 Q181 Mark

The graph shows the effect of applying a force of up to 5.0 N to a spring. [Figure showing a graph of spring length/cm against force/N, starting at 10 cm for 0 N and rising linearly to 14 cm for 5.0 N] The spring obeys Hooke's law for forces up to 7.0 N. What is the total extension of the spring produced by a 7.0 N force?

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

The correct answer is A: 4.2 cm.

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.

A4.2 cm

B5.6 cm

C15 cm

D20 cm

✓ Correct Answer

The correct answer is A: 4.2 cm

📋 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 Oct/Nov 2019 examination, Paper 1 Variant 2.

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