A-LevelPhysicsElectric fieldsMay/June 2021Paper 1 Q111 Mark
A charged particle is placed in a uniform field of force. The direction of the force on the particle is opposite to the direction of the field. What is the field and what is the charge on the particle?
Aelectric field, negative charge on particle
Belectric field, positive charge on particle
Cgravitational field, negative charge on particle
Dgravitational field, positive charge on particle
✓ Correct Answer
The correct answer is A: electric field, negative charge on particle
📋 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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