plumiConservation of energy: Edexcel International A Level Physics questions
Edexcel International A Level Physics past-paper questions on 1.3.6.3 Conservation of energy, 2019–2025, with mark schemes and examiner’s reports where available.
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Q18(c)
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All 32 questions on Conservation of energy, as a list
- 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
- June 2025, AS Unit 1, Q20(c) (4 marks): After jumping from the aeroplane, the skydiver accelerated and then reached a terminal velocity before opening his parachute. Explain how energy conservation ap
- October 2024, AS Unit 1, Q15(b)(ii) (5 marks): After passing over the bar, the athlete moves through a vertical distance of 1.4 m before he lands. Calculate the velocity of the athlete as he lands. (5) Magni
- October 2024, AS Unit 1, Q17(b) (4 marks): The bridge is above a river. The student will reach the river if the rope stretches to a total length of 35 m during the bungee jump. The student has a mass of
- June 2024, AS Unit 1, Q11(b) (3 marks): The train’s engine has an output power of 20 MW. The train takes a time of 35 s to move through the vertical height of 25 m. Calculate the work done by the engi
- June 2024, AS Unit 1, Q19(c) (3 marks): People take turns at moving along the zip-line from the high point to the low point. The people are initially at rest at the high point. Explain why the speeds
- January 2024, AS Unit 1, Q14(a)(ii) (3 marks): The child has a mass of 24 kg. Determine the maximum speed v of the child on the slide. (3) v =
- January 2024, AS Unit 1, Q14(b) (3 marks): Two slides, X and Y, have the same height. Slide X is longer than slide Y, as shown. slide X slide Y A child moves from rest down slide X and reaches a maximum
- October 2023, AS Unit 1, Q16(b)(ii) (5 marks): The force‑extension graph for the steel cable is shown below. Force total weight of electromagnet and steel object 0 Extension When the electromagnet is switche
- June 2023, AS Unit 1, Q8 (1 mark): An object accelerates from rest down a frictionless slope. The object moves a distance of 20 m. The slope is at an angle of 23° to the horizontal, as shown. obj
- June 2023, Unit 4, Q18(b)(i) (3 marks): Calculate the maximum speed of sphere B after the collision. h = 1.1 cm mass of sphere B = 28 g (3) Maximum speed =
- January 2023, AS Unit 1, Q3 (1 mark): An object of mass m is resting on top of a spring. The spring is compressed a further distance Δx by a vertical force F. The force is removed and the spring ret
- January 2023, AS Unit 1, Q17(a) (3 marks): The kinetic energy of the hammer head as it hits the button is greater than the change in gravitational potential energy of the hammer head as it moves down. Ex
- October 2022, AS Unit 1, Q16(c) (2 marks): The kinetic energy of the two skaters after the collision is much less than their combined kinetic energy before the collision, so the collision is inelastic. E
- October 2022, AS Unit 1, Q19(b)(i) (4 marks): Calculate the work done by the cyclist against air resistance. mass of cyclist and bicycle = 90 kg (4) Work done against air resistance =
- October 2022, AS Unit 1, Q19(b)(ii) (1 mark): State one assumption that must be made when calculating the work done against air resistance. (1)
- June 2022, AS Unit 3, Q4(a) (3 marks): For each value of H, the student released the sphere from the same position on the track. Explain why this ensured the sphere always reached the end of the trac
- January 2022, AS Unit 1, Q16(d) (4 marks): The spring returns to its original length L. Sketch a graph, on the axes below, to show how the velocity of the ball varies with the length of the spring. (4) v
- October 2021, AS Unit 1, Q11(b) (2 marks): As the car accelerates down the slope, the work done against frictional forces is 0.26 J. Calculate the vertical displacement of the car. (2) Vertical displacem
- October 2021, AS Unit 1, Q15 (6 marks): * 15 The photograph shows a toy car that contains a spring. Pulling the car backwards along the floor compresses the spring. Energy is stored in the compressed
- October 2021, AS Unit 3, Q4(b)(i) (2 marks): Show that the velocity u of the cube immediately before the collision is given by 2 u = gh (2)
- October 2021, AS Unit 3, Q4(d) (2 marks): Explain how friction between the cube and the surface of the ramp would affect the value obtained for e. (2)
- October 2021, Unit 4, Q15(a)(ii) (3 marks): Deduce whether this velocity is enough for the carriage to reach the top of the tower. Assume that resistive forces are negligible. (3)
- June 2021, AS Unit 1, Q7 (1 mark): Two objects with the same initial speed fall from the same height in a vacuum chamber, as shown. The arrows in the diagram show initial directions of travel of
- June 2021, AS Unit 1, Q12(a) (3 marks): Show that the trolley reaches point B with a speed of about 3 m s−1 . (3)
- January 2021, AS Unit 1, Q2 (1 mark): An object of mass 8.2 kg, initially at rest, falls a vertical distance of 25 m through the air and has a final velocity of 20 m s−1. Which of the following give
- January 2021, AS Unit 1, Q15 (6 marks): *15 In a bungee jump, the bungee jumper falls from a high platform while attached to an elastic cord. The cord is also attached to the platform. The cord slows
- October 2020, AS Unit 1, Q3 (1 mark): The diagram shows a roller coaster. A roller coaster car stops momentarily at P before descending towards Q. P 75 m Q 30 m Which of the following expressions co
- October 2020, AS Unit 1, Q18(b) (6 marks): To reach the goal, the disc must move up a ramp which is at an angle of 30° to the horizontal. goal disc 30° The velocity of the disc at the bottom of the ramp
- January 2020, Unit 4, Q13(b) (5 marks): Initially the spring was fully compressed. As the toy was released, the head accelerated upwards on its own until the spring was uncompressed. The head then pul
- June 2019, AS Unit 1, Q17(a)(i) (5 marks): Show that the maximum force acting on the climber due to the rope is about 10 kN. Assume the extension of the rope is proportional to its tension. total unstret
- January 2019, AS Unit 1, Q18(c)(ii) (5 marks): An athlete reaches the finish line at a velocity of 33 m s–1. She then applies a minimum braking force of 240 N as she moves along the uphill section of track t
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