Lesson 4.5.2

4.5.2 Work done and energy transfer Quiz: AQA Physics, Unit 5

20 questions

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Lesson 4.5.2, Work done and energy transfer: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 5: Forces, written with Revision Ninja.

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The 20 questions

  1. When is work done on an object?

    • Mass increases
    • Temperature drops
    • Velocity is zero
    • Force causes displacement
  2. Which formula calculates work done?

    • Mass times acceleration
    • Force times distance
    • Force times velocity
    • Mass times gravity
  3. The unit of work done is the:

    • Pascal
    • Watt
    • Joule
    • Newton
  4. One joule of work is equal to:

    • 1 newton-metre
    • 1 newton per metre
    • 1 newton-second
    • 1 kilogram per second
  5. A force of 25 N moves an object 4 m along its line of action. What is the work done?

    • 100 J
    • 10 J
    • 6.25 J
    • 29 J
  6. A force of 2 N moves an object 500 cm in the direction of the force. What is the work done?

    • 2.5 J
    • 250 J
    • 10 J
    • 1000 J
  7. A force does 60 J of work when it is 12 N. What distance does it move the object?

    • 720 m
    • 5 m
    • 72 m
    • 48 m
  8. A force does 30 J of work over a distance of 6 m. What is the size of the force?

    • 180 N
    • 5 N
    • 24 N
    • 36 N
  9. What happens to energy when work is done on an object?

    • Transferred between stores
    • Mass is created
    • Energy is destroyed
    • Energy stays constant
  10. What is the primary effect of work done against friction on an object?

    • Density reduction
    • Mass increase
    • Velocity decrease
    • Temperature rise
  11. Work done against friction when pushing a box across a rough floor mainly raises the temperature of what?

    • The air
    • The ceiling
    • The object
    • The observer
  12. When does a force do work on an object?

    • It loses weight
    • It stops moving
    • It creates mass
    • It causes a displacement
  13. A 1500 N weight is lifted vertically through 2 m. What is the work done against gravity?

    • 750 J
    • 1502 J
    • 30 000 J
    • 3000 J
  14. How many joules are equal to 250 newton-metres?

    • 250 J
    • 0.25 J
    • 25 000 J
    • 2.5 J
  15. A crane lifts a 200 N load upward through 3 m at constant speed. What is the work done by the crane on the load?

    • 197 J
    • 66.7 J
    • 203 J
    • 600 J
  16. A sled experiences a 15 N friction force and slides 40 m. What is the work done?

    • 2.6 J
    • 600 J
    • 6000 J
    • 55 J
  17. If the force on an object doubles while the distance remains constant, what happens to the work done?

    • It doubles
    • It quadruples
    • It halves
    • It stays the same
  18. Under what condition is the work done by a force equal to zero?

    • Maximum acceleration
    • Zero displacement
    • Zero mass
    • Zero velocity
  19. What physical quantity is always equal to the work done by a force?

    • Energy transferred
    • Gravitational force
    • Momentum created
    • Power generated
  20. A man pushes a crate 3 m with a force of 50 N, and the crate moves at constant speed while friction of 50 N acts. What work does the man do on the crate?

    • 3 J
    • 0 J
    • 50 J
    • 150 J

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