Lesson 3.01c

3.01c Units for velocity, acceleration, force and moment Quiz: OCR Maths, Unit 16

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 3.01c, Units for velocity, acceleration, force and moment: 20 multiple choice questions for the OCR Maths (H240), Unit 16: Quantities and Units in Mechanics, written with Revision Ninja.

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The 20 questions

  1. What is the standard SI unit for velocity?

    • m s⁻¹
    • N m
    • kg m s⁻¹
    • m s⁻²

  2. What is the standard SI unit for acceleration?

    • N m⁻¹
    • m s⁻¹
    • m s
    • m s⁻²

  3. What is the standard SI derived unit for force?

    • joule
    • newton
    • watt
    • pascal

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

    • kg m s⁻²
    • N m
    • N m⁻¹
    • N s

  5. Which of the following quantities is a vector quantity?

    • Displacement
    • Distance
    • Speed
    • Mass

  6. Which of the following quantities is a scalar quantity?

    • Speed
    • Weight
    • Velocity
    • Acceleration

  7. Weight is a force caused by gravity. What is its standard SI unit?

    • newton
    • N m
    • m s⁻²
    • kilogram

  8. What base SI units are equivalent to one newton?

    • kg m² s⁻²
    • kg m s⁻¹
    • kg m⁻¹ s⁻²
    • kg m s⁻²

  9. On a displacement-time graph, what does the gradient represent?

    • Force
    • Distance
    • Velocity
    • Acceleration

  10. On a velocity-time graph, what does the gradient represent?

    • Acceleration
    • Moment
    • Speed
    • Displacement

  11. What does the area under a velocity-time graph represent?

    • Acceleration
    • Displacement
    • Speed
    • Force

  12. An object moves 10 metres east then 10 metres west. What is its overall displacement?

    • 10 m
    • 20 m
    • 0 m
    • 5 m

  13. An object moves 10 metres east then 10 metres west. What is the total distance travelled?

    • 0 m
    • 10 m
    • 20 m
    • 40 m

  14. A force of 5 N acts at a perpendicular distance of 3 m. What is the moment?

    • 8 N m
    • 15 N m
    • 1.67 N m
    • 15 N

  15. If velocity changes from 4 m s⁻¹ to 10 m s⁻¹ in 2 seconds, what is the acceleration?

    • 7 m s⁻²
    • 14 m s⁻²
    • 3 m s⁻²
    • 6 m s⁻²

  16. A car travels 60 metres in 4 seconds at constant speed. What is its speed?

    • 20 m s⁻¹
    • 240 m s⁻¹
    • 15 m s⁻¹
    • 15 m s⁻²

  17. A mass of 5 kg experiences an acceleration of 4 m s⁻². What net force acts on it?

    • 20 N
    • 20 N m
    • 9 N
    • 1.25 N

  18. Which set of SI units correctly expresses a moment in terms of base units?

    • kg m² s⁻²
    • kg m s⁻¹
    • kg m⁻¹ s⁻²
    • kg m s⁻²

  19. On a displacement-time graph, what does a horizontal straight line indicate?

    • Decelerating to rest
    • Accelerating uniformly
    • Remaining stationary
    • Moving at constant speed

  20. On a velocity-time graph, a straight non-horizontal line represents motion with what characteristic?

    • Constant velocity
    • Zero force
    • Constant acceleration
    • Increasing acceleration

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