Dynamics: past paper questions

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• Question 8Oct/Nov 2025, paper 11Multiple choice1 markHas a diagram

  A sphere falls from rest through the air. The graph shows the variation with time of the sphere's velocity. Which diagram shows the forces acting on the sphere when it is at the velocity corresponding to point P on the graph?

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• Question 10May/June 2026, paper 11Multiple choice1 mark

  The mass of a fully grown African elephant is approximately four times the mass of an average car. The maximum speed of an African elephant is $40\text{ km}$ per hour. What is a reasonable estimate of the maximum momentum of a fully grown African elephant?

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• Question 9Oct/Nov 2025, paper 11Multiple choice1 mark

  In which situation is total linear momentum always conserved?

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• Question 12May/June 2026, paper 11Multiple choice1 mark

  The diagram shows the view from above of two hard balls rolling along a horizontal table. The balls each have a mass of $0.16\text{ kg}$. The initial velocity of ball P is $5.5\text{ m}{\text{ s}}^{-1}$ and the initial velocity of ball Q is $4.2\text{ m}{\text{ s}}^{-1}$.

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• Question 11Oct/Nov 2025, paper 11Multiple choice1 markHas a diagram

  The graph shows how the momentum of a motorcycle changes with time. What is the resultant force on the motorcycle?

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• Question 9Oct/Nov 2023, paper 11Multiple choice1 mark

  In an experiment, a metal ball is dropped into a viscous liquid. The terminal velocity of the ball in the liquid is measured. The experiment is repeated four times.

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• Question 9May/June 2026, paper 12Multiple choice1 mark

  What is the definition of linear momentum?

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• Question 12Oct/Nov 2025, paper 11Multiple choice1 mark

  A rocket has a weight of $W$ and an initial acceleration of $a$ as the rocket leaves the ground vertically. The acceleration of free fall is $g$. Which expression gives the initial upward force exerted on the rocket due to the engine?

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• Question 10Oct/Nov 2023, paper 11Multiple choice1 mark

  Two objects move towards each other along the same straight line. After colliding, the two objects stick together and are stationary. Which statement must be correct?

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• Question 8Oct/Nov 2025, paper 12Multiple choice1 mark

  Which statement describes the weight of an object?

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• Question 14Oct/Nov 2024, paper 11Multiple choice1 markHas a diagram

  The graph shows how velocity $v$ varies with time $t$ for a bungee jumper. At which point is the bungee jumper momentarily at rest and at which point does she have zero acceleration?

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• Question 7Oct/Nov 2023, paper 12Multiple choice1 markHas a diagram

  Two blocks, of mass $0.20\text{ kg}$ and $0.50\text{ kg}$, are connected by a light inextensible string that passes over a frictionless pulley. The blocks are initially held stationary. The block of mass $0.20\text{ kg}$ rests on a rough horizontal surface.

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• Question 9Oct/Nov 2025, paper 12Multiple choice1 mark

  What is a statement of the principle of conservation of momentum?

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• Question 15Oct/Nov 2024, paper 11Multiple choice1 markHas a diagram

  A solid sphere, which is less dense than water, is held completely immersed in water a few metres below the surface. The density of the water is uniform. The sphere is released.

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• Question 12May/June 2026, paper 12Multiple choice1 mark

  Which statement is not a requirement of a pair of forces that obey Newton’s third law of motion?

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• Question 10Oct/Nov 2025, paper 12Multiple choice1 markHas a diagram

  The diagram shows the view from above of two balls moving along a horizontal frictionless surface before they collide. The momentum of each ball is also shown. The balls stick together during the collision.

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• Question 7Oct/Nov 2024, paper 12Multiple choice1 markHas a diagram

  A moving object strikes a stationary object. The collision is inelastic. The objects move off together.

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• Question 9Oct/Nov 2023, paper 12Multiple choice1 mark

  An object falls from a stationary helicopter and reaches terminal velocity. What happens to the acceleration of the object between leaving the helicopter and reaching terminal velocity?

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• Question 5May/June 2026, paper 13Multiple choice1 markHas a diagram

  An object falls from a large height. The air resistance acting on the object is significant. The graphs show the variation of two quantities $P$ and $Q$ with time.

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• Question 8Oct/Nov 2024, paper 12Multiple choice1 markHas a diagram

  The graph shows how a quantity $Y$ varies with a quantity $X$ for an object falling vertically at its terminal velocity towards the surface of the Earth. Which quantities could $X$ and $Y$ represent?

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• Question 8May/June 2026, paper 13Multiple choice1 mark

  The forces acting on an object are in equilibrium at one instant. Which quantity related to the object's motion must have zero magnitude at this instant?

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• Question 12Oct/Nov 2025, paper 12Multiple choice1 markHas a diagram

  Two different blocks, P and Q, slide towards each other on a horizontal frictionless surface. The blocks have an elastic collision. The diagram shows the velocities of the two blocks immediately after the collision.

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• Question 7Oct/Nov 2023, paper 13Multiple choice1 mark

  Which statement about mass is correct?

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• Question 9May/June 2026, paper 13Multiple choice1 markHas a diagram

  The diagram shows an object on a horizontal air track moving with velocity $u$ towards a stationary identical object. The objects collide and stick together. The objects then move along the track with velocity $v$.

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• Question 10Oct/Nov 2024, paper 12Multiple choice1 markHas a diagram

  Two train carriages each of mass $5000\text{ kg}$ roll toward one another on a horizontal frictionless track. One is travelling at a speed of $2.00{\text{ m s}}^{-1}$ and the other at a speed of $1.00{\text{ m s}}^{-1}$, as shown. They collide and join together.

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• Question 7Oct/Nov 2024, paper 13Multiple choice1 mark

  Two identical balls are projected vertically upwards from ground level with the same initial velocity. Ball X is in a vacuum and ball Y is in air. Which statement about the motion of the balls is correct?

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• Question 9Oct/Nov 2023, paper 13Multiple choice1 markHas a diagram

  A ball falls from rest through air and eventually reaches a constant velocity. For this fall, forces $X$ and $Y$ vary with time as shown. What could be forces $X$ and $Y$?

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• Question 11May/June 2026, paper 13Multiple choice1 mark

  Which statement describes the mass of an object?

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• Question 8Oct/Nov 2024, paper 13Multiple choice1 markHas a diagram

  The graph shows the variation of velocity with time for a stone that falls from a bridge into a lake and sinks to the bottom of the lake. What can be deduced about the motion of the stone?

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• Question 10Oct/Nov 2023, paper 13Multiple choice1 markHas a diagram

  An object X of mass 0.30 kg is travelling in a straight line at a constant velocity of $3.0{\text{ m s}}^{-1}$ on a horizontal frictionless surface. Object X collides with a stationary object Y of mass 0.50 kg.

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