Lesson 4.1.1.4

4.1.1.4 Power Quiz: AQA Physics, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

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Lesson 4.1.1.4, Power: 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. What is the scientific definition of power?

    • Stored energy amount
    • Total work done
    • Force multiplied by mass
    • Rate of energy transfer

  2. Which calculation gives the power from energy transferred and time?

    • Time divided by energy
    • Energy times time
    • Energy divided by time
    • Energy plus time

  3. What is the unit of power?

    • Joule (J)
    • Coulomb (C)
    • Watt (W)
    • Newton (N)

  4. An energy transfer of 1 joule per second is equal to what power?

    • 1 kilowatt
    • 1 joule
    • 1 watt
    • 1 newton

  5. A motor transfers 1200 J in 4 s. What is its power?

    • 30 W
    • 1196 W
    • 300 W
    • 4800 W

  6. A lifting machine does 6000 J of work in 20 s. What is its power?

    • 120000 W
    • 30 W
    • 3 W
    • 300 W

  7. Motor A does the same work in one quarter of the time of Motor B. How do their powers compare?

    • Sixteen times greater
    • Four times smaller
    • Four times greater
    • The same power

  8. A 2000 W heater runs for 90 s. How much energy does it transfer?

    • 180000 J
    • 22 J
    • 1800 J
    • 2220 J

  9. To convert 5 MW for one hour into joules, by what value is power multiplied?

    • 60 seconds
    • 86400 seconds
    • 1000 seconds
    • 3600 seconds

  10. Which equation gives power as work done divided by time?

    • P = W x t
    • P = W - t
    • P = W / t
    • P = t / W

  11. A crane lifts a 500 kg load through 10 m in 25 s with g = 10 N/kg. What is its power?

    • 500 W
    • 2000 W
    • 200 W
    • 20000 W

  12. A kettle has a power rating of 2.5 kW. Which energy does it transfer in 4 minutes?

    • 150 J
    • 600000 J
    • 37500 J
    • 10000 J

  13. A person's average power output is 100 W for 15 minutes. What energy is transferred?

    • 900 J
    • 90000 J
    • 1500 J
    • 6000 J

  14. Which change increases the power of a motor doing a fixed amount of work?

    • Adding more mass
    • Increasing the time taken
    • Lowering the voltage
    • Decreasing the time taken

  15. A 100 W lamp and a 60 W lamp are both left on for 1 hour. Which transfers more energy?

    • The 100 W lamp
    • Neither transfers energy
    • Both transfer equal energy
    • The 60 W lamp

  16. A machine transfers 300 J to a store every 5 s. What is its power?

    • 1.67 W
    • 60 W
    • 1500 W
    • 305 W

  17. A cyclist's power output doubles while the time remains the same. What happens to the energy transferred?

    • It quadruples
    • It doubles
    • It stays the same
    • It halves

  18. A pump has a power rating of 750 W and runs for 2 minutes. How much energy is transferred?

    • 375 J
    • 22500 J
    • 90000 J
    • 1500 J

  19. An electric car uses 5000 J of energy every second. What is its power output?

    • 50000 W
    • 5 W
    • 5000 W
    • 500 W

  20. What is the primary physical difference between power and energy?

    • Rate of transfer
    • Different units used
    • Direction of flow
    • Total amount stored

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