Lesson 4.1.1.2

4.1.1.2 Changes in energy Quiz: AQA Physics, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.1.1.2, Changes in energy: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 1: Energy, written with Revision Ninja.

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The 20 questions

  1. Which equation gives the kinetic energy of a moving object?

    • Ek = m x g x h
    • Ek = 0.5 x m x v squared
    • Ek = 0.5 x k x e squared
    • Ek = m x v squared

  2. Which equation gives the elastic potential energy stored in a stretched spring?

    • Ee = k x e
    • Ee = 0.5 x m x v squared
    • Ee = 0.5 x k x e squared
    • Ee = m x g x h

  3. Which formula calculates gravitational potential energy gained by an object raised above ground level?

    • m x g x h
    • 0.5 x k x e squared
    • 0.5 x m x v squared
    • m x c x delta theta

  4. A 2 kg object moves at 3 m/s. What is its kinetic energy?

    • 9 J
    • 12 J
    • 18 J
    • 3 J

  5. A 4 kg object is raised 3 m on Earth where g = 10 N/kg. What is its gravitational potential energy gain?

    • 12 J
    • 120 J
    • 75 J
    • 30 J

  6. A spring has spring constant 200 N/m and is stretched by 0.05 m. What is its elastic potential energy?

    • 2.5 J
    • 0.025 J
    • 10 J
    • 0.25 J

  7. Doubling the speed of a moving object changes its kinetic energy by what factor?

    • Half
    • Eight times
    • Four times
    • Two times

  8. In the elastic potential energy equation, what quantity does the symbol e represent?

    • Efficiency
    • Energy
    • Elasticity
    • Extension

  9. What condition must hold for the elastic potential energy equation to remain valid?

    • Elastic limit not exceeded
    • Temperature remains constant
    • Velocity is zero
    • Mass is doubled

  10. What is the SI unit of kinetic energy, gravitational potential energy and elastic potential energy?

    • Pascal (Pa)
    • Joule (J)
    • Newton (N)
    • Watt (W)

  11. A 60 kg student climbs a staircase 4 m high. Using g = 10 N/kg, how much gravitational potential energy is gained?

    • 2400 J
    • 600 J
    • 15 J
    • 240 J

  12. A car of mass 1000 kg travels at 20 m/s. What is its kinetic energy?

    • 200000 J
    • 100000 J
    • 20000 J
    • 400000 J

  13. A 0.5 kg ball is thrown and reaches 8 m/s. Which is its kinetic energy?

    • 8 J
    • 16 J
    • 4 J
    • 32 J

  14. A spring of extension 0.2 m stores 4 J of elastic potential energy. What is its spring constant?

    • 200 N/m
    • 800 N/m
    • 50 N/m
    • 20 N/m

  15. A 3 kg object has 54 J of kinetic energy. What is its speed?

    • 6 m/s
    • 18 m/s
    • 3 m/s
    • 9 m/s

  16. An object of mass 5 kg is lifted 2 m and then released to fall. Assuming no energy losses, what is its speed at the ground if g = 10 N/kg?

    • 2 m/s
    • About 6.3 m/s
    • 20 m/s
    • 10 m/s

  17. Why can the zero reference level for gravitational potential energy be chosen arbitrarily?

    • Gravity is constant
    • Mass cancels out
    • Energy is always zero
    • Only height change matters

  18. What is the primary energy store transfer when a catapult launches a stone upwards?

    • Gravitational to elastic
    • Elastic to kinetic
    • Chemical to thermal
    • Kinetic to chemical

  19. A moving object has kinetic energy 50 J and its speed is halved. What is its new kinetic energy?

    • 50 J
    • 12.5 J
    • 100 J
    • 25 J

  20. A lift of mass 500 kg rises 20 m. Using g = 10 N/kg, what is the gravitational potential energy gain in kilojoules?

    • 50 kJ
    • 10 kJ
    • 1000 kJ
    • 100 kJ

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