A-LevelPhysicsDeformation of solidsOct/Nov 2020Paper 1 Q201 Mark

A mass of 60.0 g is suspended from a spring and the distance from the bottom of the spring to the floor is measured to be 16.4 cm. The mass is replaced with a 100.0 g mass and the distance from the bottom of the spring to the floor is now measured to be 12.6 cm. The spring obeys Hooke's law. What is the spring constant of the spring?

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

The correct answer is C: 10.3 N m⁻¹.

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.

A1.05 N m⁻¹

B1.35 N m⁻¹

C10.3 N m⁻¹

D103 N m⁻¹

✓ Correct Answer

The correct answer is C: 10.3 N m⁻¹

📋 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 2020 examination, Paper 1 Variant 2.

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