Lesson 3.03a

3.03a Forces and Newton's first law Quiz: OCR Maths, Unit 18

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 3.03a, Forces and Newton's first law: 20 multiple choice questions for the OCR Maths (H240), Unit 18: Forces and Newton's Laws, written with Revision Ninja.

Host it live on the board and students join with a game code on their own devices, or revise alone with Free Play. The answers are revealed in the game.

Host this setFree Play

The 20 questions

  1. What type of quantity is force?

    • Dimensionless
    • Vector
    • Tensor
    • Scalar

  2. According to Newton's first law, what resultant force acts on an object moving at constant velocity?

    • Equal to mass
    • Zero
    • Negative constant
    • Positive constant

  3. What vector representation is used for a force in a force diagram?

    • Single point
    • Directed line segment
    • Curved arrow
    • Shaded region

  4. What is the resultant force acting on a particle in equilibrium?

    • Infinite
    • Equal to velocity
    • Zero
    • Equal to mass

  5. Which force acts vertically downwards on a book resting on a horizontal table?

    • Weight
    • Tension
    • Friction
    • Normal reaction

  6. What happens to a stationary object when no resultant force acts on it?

    • Decelerates
    • Moves at 1 m/s
    • Remains at rest
    • Accelerates slowly

  7. Two forces, 5 N east and 5 N west, act on a stationary object. What happens?

    • Accelerates west
    • Moves at 5 m/s
    • Accelerates east
    • Remains at rest

  8. An object moves east at 3 m/s under balanced forces. What is its velocity?

    • 0 m/s
    • 3 m/s west
    • 3 m/s east
    • 6 m/s east

  9. A particle is in equilibrium under the forces 4i + 3j N and F. What is F?

    • 7i + 7j N
    • -3i - 4j N
    • -4i - 3j N
    • 4i + 3j N

  10. A particle at rest is acted on by forces 6i + 8j N, and a third force F. What is the magnitude of F so that the particle remains in equilibrium?

    • 2 N
    • 48 N
    • 14 N
    • 10 N

  11. A particle moves with constant velocity (2i - j) m/s. What is the resultant force acting on it?

    • (-2i + j) N
    • 2i - j N
    • 5 N
    • 0 N

  12. A particle at rest is acted on by forces (3i + 4j) N and (-i + 2j) N and a third force F. What is F for equilibrium?

    • 2i + 6j N
    • 2i - 2j N
    • -2i - 6j N
    • -4i - 2j N

  13. Three forces act on a particle in equilibrium: F1 = 2i + 3j N, F2 = -5i + j N and F3. What is F3?

    • 3i - 4j N
    • 7i + 4j N
    • -7i - 4j N
    • -3i + 4j N

  14. Ignoring air resistance, which force acts on a thrown ball during its flight?

    • Zero force
    • Upward force only
    • Normal reaction
    • Weight only

  15. Velocity is a vector. What properties of velocity can a resultant force change?

    • Neither property
    • Magnitude and direction
    • Magnitude only
    • Direction only

  16. A particle is in equilibrium under three forces. What is their vector sum?

    • Non-zero vector
    • Unit vector
    • Scalar constant
    • Zero vector

  17. A 20 N weight rests on a smooth horizontal table. What is the normal reaction?

    • 20 N downward
    • 0 N
    • 9.8 N upward
    • 20 N upward

  18. A particle is at rest with forces 3 N north and 4 N east acting on it. A third force F must keep it in equilibrium. What is the magnitude of F?

    • 7 N
    • 5 N
    • 12 N
    • 1 N

  19. Two equal forces act on a particle in equilibrium. What is the angle between them?

    • 180°
    • 360°
    • 90°
    • 0°

  20. A particle experiences forces of 6 N east and 2 N west. What is the resultant force?

    • 4 N east
    • 4 N west
    • 8 N west
    • 8 N east

All OCR Maths quizzes