plumiCoulomb's law: AQA A‑Level Physics questions
AQA A-Level Physics past-paper questions on 3.7.3.1 Coulomb's law, 2008–2025, with mark schemes and examiner’s reports where available.
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All 28 questions on Coulomb's law, as a list
- June 2025, Paper 2, Q12 (1 mark): Two metal spheres each have radius r and charge Q. The force between them is F when the distance between their centres is x. Two other metal spheres each have r
- June 2024, Paper 2, Q25 (1 mark): The force between two point charges is F. The magnitude of each charge is doubled and the distance between them is halved. What is the new force between the two
- June 2023, Paper 2, Q15 (1 mark): Two point charges are separated by a distance of 200 mm. The force of attraction between them is 180 µN. The distance between the point charges is increased by
- November 2021, Paper 2, Q06.3 (2 marks): One model of nuclear fusion suggests that fusion happens when nuclei touch. Initially the helium nucleus and oxygen nucleus are separated so that the force betw
- November 2021, Paper 2, Q14 (1 mark): The diagram shows a particle with charge +Q and a particle with charge −Q separated by a distance d. The particles exert a force F on each other. An additional
- November 2021, Paper 2, Q15 (1 mark): Two protons are separated by distance r. The electrostatic force between the two protons is X times the gravitational force between them. What is the best estim
- November 2020, Paper 2, Q14 (1 mark): Two fixed charges of magnitude +Q and +3Q repel each other with a force F. An additional charge of −2Q is given to each charge. What are the magnitude and the d
- June 2019, Paper 2, Q04.2 (2 marks): The charged spheres in Figure 3 are at equilibrium. Draw labelled arrows on Figure 3 to show the forces on sphere B. [2 marks]
- June 2019, Paper 2, Q04.4 (3 marks): Show that the magnitude of the electrostatic force on each sphere is about 4 × 10−3 N. [3 marks]
- June 2019, Paper 2, Q04.5 (2 marks): A student measures the angle θ when the apparatus in Figure 3 is at equilibrium. The student records θ as 7°. Discuss whether this measurement is consistent wit
- Specimen, Paper 2, Q13 (1 mark): The diagram shows the path of an α particle deflected by the nucleus of an atom. Point P on the path is the point of closest approach of the α particle to the n
- Specimen, Paper 2, Q15 (1 mark): The diagram shows two particles at distance d apart. One particle has charge +Q and the other –2Q. The two particles exert an electrostatic force of attraction,
- June 2016, PHYA4 Section A (old spec), Q12 (1 mark): A +2.0 nC point charge X is at a fixed distance from a –1.0 nC point charge Y. The force between the two charges is F. If an additional charge of +2.0 nC is sup
- June 2016, PHYA4 Section A (old spec), Q18 (1 mark): The gravitational constant, G, is a constant of proportionality in Newton’s law of gravitation. The permittivity of free space, ε0, is a constant of proportiona
- June 2015, PHYA4 Section B (old spec), Q2(a) (2 marks): State, in words, Coulomb’s law. [2 marks]
- June 2014, PHYA4 Section A (old spec), Q12 (1 mark): Which one of the following statements is correct? The force between two charged particles A is always attractive. B can be measured in C2F–1m–1. C is directly p
- June 2014, PHYA4 Section A (old spec), Q13 (1 mark): Two point charges, X and Y, exert a force F on each other when they are at a distance d apart. When the distance between them is 20mm, the force they exert on e
- June 2013, PHYA4 Section A (old spec), Q17 (1 mark): Two identical positive point charges, P and Q, separated by a distance r, repel each other with a force F. If r is decreased so that the electrical potential en
- January 2013, PHYA4 Section B (old spec), Q4(a) (2 marks): State, in words, Coulomb’s law. (2 marks)
- January 2013, PHYA4 Section B (old spec), Q4(b)(ii) (2 marks): Calculate the magnitude of the electrostatic force acting on the +4.0nC charge. magnitude of force N (2 marks)
- June 2012, PHYA4 Section A (old spec), Q15 (1 mark): The force between two point charges is F when they are separated by a distance r. If the separation is increased to 3r, what is the force between the charges? A
- June 2012, PHYA4 Section A (old spec), Q16 (1 mark): The diagram shows the path of an α particle deflected by the nucleus of an atom. Point P on the path is the point of closest approach of the α particle to the n
- January 2012, PHYA4 Section A (old spec), Q14 (1 mark): A repulsive force F acts between two positive point charges separated by a distance r. What will be the force between them if each charge is doubled and the dis
- January 2011, PHYA4 Section A (old spec), Q13 (1 mark): The repulsive force between two small negative charges separated by a distance r is F. What is the force between the charges when the separation is reduced to ?
- January 2011, PHYA4 Section A (old spec), Q16 (1 mark): Two protons are 1.0×10 –14 m apart. Approximately how many times is the electrostatic force between them greater than the gravitational force between them? (Use
- June 2010, PHYA4 Section A (old spec), Q12 (1 mark): A small object O carrying a charge +Q is placed at a distance d from a metal plate that has an equal and opposite charge. The object is acted on by an electrost
- January 2010, PHYA4 Section A (old spec), Q13 (1 mark): The diagram shows two particles at a distance d apart. One particle has charge +Q and the other –2Q. The two particles exert an electrostatic force of attractio
- January 2008, PA04A (2008 spec), Q12 (2 marks): 12 When two point charges, each +Q, are distance r apart, the force between them is F. What is the force between point charges of +Q and +2Q when they are dista
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