Lesson 3.01a

3.01a SI units and derived quantities Quiz: OCR Maths, Unit 16

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 3.01a, SI units and derived quantities: 20 multiple choice questions for the OCR Maths (H240), Unit 16: Quantities and Units in Mechanics, 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. Which of these is the SI base unit of mass?

    • newton
    • kilogram
    • pound
    • gram

  2. What is the standard SI unit for velocity?

    • Metres per second squared
    • Newtons per second
    • Metres
    • Metres per second

  3. Which base units make up the newton?

    • kg m^2 s^-2
    • kg s^-2
    • kg m s^-1
    • kg m s^-2

  4. What is the SI unit of the moment of a force?

    • N m^-1
    • N m
    • m/s
    • N

  5. Which of the following is NOT one of the three mutually independent base quantities used in mechanics?

    • mass
    • time
    • velocity
    • length

  6. What is the SI unit of acceleration?

    • m^2 s^-1
    • m/s
    • m s^-1
    • m s^-2

  7. What is the standard SI unit for mass?

    • Kilograms
    • Metres per second
    • Grammes
    • Newtons

  8. A car's speed is 36 km/h. What is its speed in m/s?

    • 0.6 m/s
    • 36 m/s
    • 10 m/s
    • 3600 m/s

  9. A body of mass 2 kg accelerates at 3 m s^-2. What is the resultant force acting on it?

    • 0.67 N
    • 5 N
    • 6 kg
    • 6 N

  10. Which quantity has the SI unit kg m s^-2?

    • Momentum
    • Velocity
    • Force
    • Acceleration

  11. A body travels 150 m in 30 s at constant speed. What is its speed?

    • 4500 m s^-1
    • 5 m s^-2
    • 5 m s^-1
    • 0.2 m s^-1

  12. A particle's velocity increases from 0 to 20 m/s in 4 s. What is its acceleration?

    • 0.2 m s^-2
    • 5 m s^-2
    • 20 m s^-2
    • 80 m s^-2

  13. A force of 10 N acts at a perpendicular distance of 0.5 m from a pivot. What is the magnitude of its moment?

    • 5 N m
    • 0.05 N m
    • 20 N
    • 10.5 N m

  14. Which quantity has the SI unit kg?

    • Force
    • Mass
    • Weight
    • Moment

  15. A body has mass 4 kg. Taking g = 9.8 m s^-2, what is its weight?

    • 0.41 N
    • 9.8 N
    • 4 kg
    • 39.2 N

  16. A length is given as 3.2 km. What is this length in metres?

    • 3200 m
    • 0.0032 m
    • 32 m
    • 320 m

  17. Which pair of quantities are both measured in newtons?

    • force and weight
    • mass and weight
    • acceleration and velocity
    • moment and velocity

  18. What is the standard SI unit for acceleration?

    • Metres per second
    • Seconds per metre squared
    • Metres per second squared
    • Newtons per metre

  19. Which expression has the same units as the moment of a force, N m?

    • kg m^2 s^-2
    • kg m s^-1
    • kg m^2 s^-1
    • kg m s^-2

  20. A force of 6 N acts on a particle of mass 2 kg, which starts from rest. What is its speed after 3 s, in m s^-1?

    • 1 m s^-1
    • 3 m s^-1
    • 18 m s^-1
    • 9 m s^-1

All OCR Maths quizzes