plumiMomentum and its conservation: Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 1.3.4.1 Momentum and its conservation, 2019–2025, with mark schemes and examiner’s reports where available.
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All 43 questions on Momentum and its conservation, as a list
- June 2025, AS Unit 1, Q10 (1 mark): A toy train of mass 3m is moving with a speed v. A toy truck of mass m is moving with a speed 2v in the opposite direction, as shown. v 2v 3m m The train and tr
- June 2025, AS Unit 1, Q18(c) (6 marks): Diagram 1 shows the position of the spheres when sphere A is released. After being released, sphere A collides with sphere B and comes to rest. Spheres B, C and
- January 2025, AS Unit 1, Q14(b) (3 marks): Gliders A and B have different masses and move at different velocities before the collision, as shown. –1 –1 0.32 m s 0.11 m s 0.15 kg 0.20 kg air track glider
- October 2024, AS Unit 1, Q8 (1 mark): A student uses a wooden bat to hit a stationary ball of mass m. As the bat hits the ball, the momentum of the bat decreases by Δp. The ball then moves with velo
- June 2024, AS Unit 1, Q15(a) (3 marks): Show that the velocity of ball A immediately after the collision is about 0.05 m s (3)
- 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)
- January 2024, AS Unit 1, Q16(c) (3 marks): The ball is thrown again, and collides with another stationary skittle. During the collision the horizontal velocity of the ball changes from 7.2 m s –1 to 1.6
- January 2024, Unit 4, Q20(a) (2 marks): State what is meant by the principle of conservation of momentum. (2)
- October 2023, AS Unit 1, Q2 (1 mark): Which of the following is an SI unit for momentum? A kg m s –1 B J m –1 C m s –2 D N s –1
- October 2023, AS Unit 1, Q12(a) (2 marks): State the principle of conservation of linear momentum. (2)
- October 2023, AS Unit 1, Q12(b)(i) (2 marks): Deduce whether these results show that the law of conservation of linear momentum is obeyed. (2)
- October 2023, AS Unit 1, Q12(b)(ii) (2 marks): Explain why the force of attraction between the two magnets did not affect this demonstration. (2)
- June 2023, AS Unit 1, Q15(a) (3 marks): Explain, in terms of momentum, why the machine starts to move as the ball is launched. (3)
- June 2023, AS Unit 1, Q15(b) (3 marks): Calculate the velocity of the machine just after the ball is launched. velocity of ball = 4.5 m s–1 mass of ball = 0.056 kg mass of machine = 2.9 kg (3) Velocit
- January 2023, AS Unit 1, Q16(a) (4 marks): Determine the velocity v of the descent module after separation. You should only consider momentum along a horizontal line through the centres of the three modu
- January 2023, AS Unit 3, Q4(c)(i) (2 marks): Explain why a graph of F against v can be used to determine a value for t. (2)
- January 2023, AS Unit 3, Q4(c)(iii) (3 marks): Determine a value for t using the gradient of your graph. M = 0.125 kg (3) t =
- October 2022, AS Unit 1, Q16(a) (2 marks): State the principle of conservation of momentum. (2)
- October 2022, AS Unit 1, Q16(b) (3 marks): Two speed skaters are skating as shown. skater B skater A (Source: © sportpoint/Shutterstock) Initially, skater B is directly behind skater A. Skater B is movin
- October 2022, AS Unit 3, Q1(b)(i) (4 marks): Calculate the values missing from the table. (4) –1 Velocity = m s –1 Momentum = kg m s
- October 2022, AS Unit 3, Q1(b)(ii) (2 marks): Determine whether the student’s values show that momentum was conserved in this collision. (2)
- June 2022, AS Unit 1, Q17(a)(i) (3 marks): Show that the total mass of Q was about 150 kg. total mass of P = 250 kg (3)
- June 2022, AS Unit 1, Q17(a)(ii) (1 mark): State one assumption you made in your calculation in (a)(i). (1)
- June 2022, Unit 4, Q18(a)(i) (3 marks): The vehicle was given a push. The aluminium plate took 0.19 s to pass through light gate 1. Show that the momentum of the vehicle was about 0.3 N s. length of p
- June 2022, Unit 5, Q15(b) (2 marks): Explain why not all of the energy from the decay is released as kinetic energy of the alpha particle. (2)
- January 2022, AS Unit 1, Q11(a) (2 marks): State the principle of conservation of linear momentum. (2)
- January 2022, AS Unit 1, Q11(b)(i) (2 marks): Show that the mass of asteroid A was about 8.2 × 1013 kg. (2)
- January 2022, AS Unit 1, Q11(b)(ii) (3 marks): Calculate the velocity of the asteroids after the collision. mass of asteroid B = 5.90 × 1012 kg velocity of asteroid B before the collision = 15.0 × 103 m s−1
- January 2022, Unit 5, Q20(c) (4 marks): The francium nucleus and the alpha particle move away from each other after the decay. Explain why the kinetic energy given to the alpha particle is just less t
- October 2021, AS Unit 1, Q12(a) (2 marks): State the principle of conservation of momentum. (2)
- October 2021, AS Unit 1, Q12(b) (3 marks): The aluminium sphere has an initial velocity of 10.0 m s–1. Immediately after the collision the velocity of the steel sphere is 5.0 m s–1. 10 m s–1 Before colli
- June 2021, AS Unit 1, Q11(a) (2 marks): Show that the total momentum of the carriages immediately after the collision was approximately 4.5 × 105 kg m s−1 . (2)
- June 2021, AS Unit 1, Q11(b) (2 marks): Calculate the velocity of the second carriage before the collision. (2) Velocity of second carriage =
- January 2021, AS Unit 1, Q6 (1 mark): Two objects are travelling directly towards each other and then collide. Object A is a mass of 2 kg initially travelling to the right at 3 m s−1 and object B is
- January 2021, AS Unit 1, Q14(a)(ii) (2 marks): Determine the rate at which the momentum of the seawater is changed by the pump. You may assume that the seawater is initially stationary. (2) Rate of change of
- October 2020, AS Unit 1, Q18(a) (3 marks): Calculate a value for v. Assume that frictional forces are negligible. mass of disc = 0.035 kg mass of mallet = 0.17 kg (3) v =
- October 2020, Unit 6, Q1(b) (3 marks): The student pushed glider A. The first light gate recorded the time t1 for the card on glider A to pass through it. The gliders collided and stuck together. The
- January 2020, AS Unit 1, Q7 (1 mark): Trolleys X and Y of masses m and 3m respectively are travelling at the same speed towards each other. The trolleys collide and move off together. v v X Y Which
- January 2020, AS Unit 1, Q16(b) (4 marks): The average water content in a popcorn kernel is 14% of the total mass of the kernel. A kernel is heated until it pops. Steam is ejected downwards, and the popp
- June 2019, AS Unit 1, Q11 (4 marks): A child is standing on a skateboard and both are stationary. The child throws a ball forward at a high velocity and the child and the skateboard move backwards
- January 2019, AS Unit 1, Q15(a) (4 marks): Use a scaled vector diagram to show that the magnitude of the total momentum of spheres P and Q after the collision is about 0.2 kg m s–1. (4) Total momentum of
- January 2019, AS Unit 1, Q15(b) (2 marks): State the principle of conservation of linear momentum. (2)
- January 2019, AS Unit 1, Q15(c) (2 marks): Calculate the initial velocity of sphere P. mass of sphere P = 0.12 kg (2) Initial velocity of sphere P =
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