plumiMomentum in two dimensions (core practical 10): Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 4.3.1.2 Momentum in two dimensions (core practical 10), 2019–2025, with mark schemes and examiner’s reports where available.
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All 27 questions on Momentum in two dimensions (core practical 10), as a list
- June 2025, Unit 4, Q12 (3 marks): A student investigated collisions, using three spheres. The student rolled a sphere of mass 35 g into two stationary spheres, each of mass 37 g, as shown. 0.40
- January 2025, Unit 4, Q19(b) (6 marks): In another collision, car A collides with car B. Car A is initially travelling at 2.19 m s –1 in a straight line. Car B is stationary. After the collision, car
- October 2024, Unit 4, Q18(b)(iii) (6 marks): The diagram shows the directions of the three particles involved in the decay. Not to scale θ 65 n + Σ+ Determine the magnitude and direction of the momentum o
- June 2024, Unit 4, Q2 (1 mark): A moving particle, P, decays. After the decay there are two particles, particle Q and particle R. The diagram shows the momentum of particle Q and the momentum
- June 2024, Unit 4, Q15(a) (2 marks): Explain how using the air table ensured that momentum was conserved in collisions between the pucks. (2)
- June 2024, Unit 4, Q15(b)(i) (5 marks): Deduce whether the angle between the paths of the pucks after the collision was 90°. You should use the principle of conservation of momentum. (5)
- January 2024, Unit 4, Q20(a) (2 marks): State what is meant by the principle of conservation of momentum. (2)
- January 2024, Unit 4, Q20(b)(i) (4 marks): Show that the speed of the helium nucleus immediately after the collision is about 5.6 × 10 6 m s –1. mass of helium nucleus = 6.64 × 10 –27 kg speed of alpha p
- October 2023, Unit 4, Q19(a) (4 marks): Show that v is about 1.3 m s –1. (4)
- June 2023, Unit 4, Q14(a) (6 marks): Show that the momentum of the proton after the collision is about 5 × 10 –20 N s at an angle θ, where θ is about 20°. (6)
- January 2023, Unit 4, Q14(a) (2 marks): State the principle of conservation of momentum. (2)
- January 2023, Unit 4, Q14(b)(ii) (5 marks): Deduce whether the values show the conservation of momentum. (5)
- October 2022, Unit 4, Q16(b)(i) (5 marks): Deduce whether momentum is conserved for this collision by completing the vector diagram below. A scaled line representing pheel is shown. mass of ball = 160 g
- June 2022, Unit 4, Q12(b) (2 marks): For this situation, a scaled vector diagram showing the velocities of the balls can be used to demonstrate the law of conservation of momentum. Explain why. (2)
- June 2022, Unit 4, Q12(c) (5 marks): Deduce whether the black ball moves towards the pocket. You should use a scaled vector diagram. (5)
- October 2021, Unit 4, Q18(e)(ii) (5 marks): The initial path of the muon is at an angle of 18° to the direction of the pion, as shown. Data for the momentum of each particle at point X is listed below. mo
- June 2021, Unit 4, Q7 (1 mark): A sphere travelling at speed v collides elastically with an identical sphere which is at rest. After the collision, both spheres move off at an angle θ to the d
- June 2021, Unit 4, Q15(a) (2 marks): This collision method is modelled for a spacecraft travelling in a direction at 90° to the path of the asteroid. Sketch a labelled vector diagram to show the mo
- June 2021, Unit 4, Q15(b) (2 marks): Show that the momentum of the spacecraft is about 107 N s. mass of spacecraft = 920 kg speed of spacecraft = 12 000 m s–1 (2)
- June 2021, Unit 4, Q15(c) (2 marks): Show that this collision method causes the asteroid to change its direction through an angle of about 10–7 radian. momentum of asteroid = 7.6 × 1013 N s (2)
- June 2021, Unit 4, Q15(d) (2 marks): After the collision, the asteroid and spacecraft remain joined and move together. Calculate the component of their velocity at 90° to the original path of the a
- January 2021, Unit 4, Q17(b)(i) (4 marks): Calculate the speed of puck 2 after the collision. mass of puck 1 = 110 g mass of puck 2 = 130 g speed of puck 1 after collision = 0.28 m s−1 (4) Speed of puck
- January 2021, Unit 4, Q17(c) (2 marks): Explain the assumption made when applying the principle of conservation of momentum to collisions. (2)
- October 2020, Unit 4, Q17(b)(ii) (2 marks): The radon atom was stationary before the first alpha emission. The angle between the two alpha tracks is 60°. Sketch a vector diagram to show the momentum of th
- October 2020, Unit 4, Q17(b)(iii) (6 marks): Determine the magnitude of the velocity of the lead ion. velocity of alpha particle emitted by radon = 1.74 × 107 m s−1 velocity of alpha particle emitted by po
- October 2020, Unit 4, Q17(c) (3 marks): The photograph shows another pair of tracks following radon decay. Deduce which track is for the first alpha particle emitted. (3)
- January 2020, Unit 4, Q9 (1 mark): The diagram shows the momenta P and Q of two bodies about to collide. P Q When the bodies collide they merge and move on as a single body. Which of the followin
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