A-LevelPhysicsForces, density and pressureMay/June 2013Paper 1 Q31 Mark

Two forces act on a circular disc as shown. [Figure showing a circular disc with a 3N force acting upwards from the center and a 4N force acting rightwards from the center] Which diagram shows the line of action of the resultant force?

Q: What topic does this question test?

This question tests Forces, density and pressure in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Acircular disc with a central dot and a force vector of 5N pointing towards the bottom-left from the center.

Bcircular disc with a central dot and a force vector of 5N pointing towards the bottom-right from the center.

Ccircular disc with a central dot and a force vector of 5N pointing towards the top-right from the center.

Dcircular disc with a central dot and a force vector of 5N pointing towards the top-left from the center.

✓ Correct Answer

The correct answer is A: circular disc with a central dot and a force vector of 5N pointing towards the bottom-left from the center.

📋 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 Forces, density and pressure in A-Level Physics (syllabus code 9702). It is worth 1 mark.

Source

This question appeared in the Cambridge A-Level Physics May/June 2013 examination, Paper 1 Variant 2.

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