Lesson 4.1.1.3

4.1.1.3 Energy changes in systems Quiz: AQA Physics, Unit 1

20 questions

Written by Revision Ninja · Last reviewed 11 October 2026

In partnership with Revision Ninja

Lesson 4.1.1.3, Energy changes in systems: 20 multiple choice questions for the AQA GCSE Physics (8463), Unit 1: Energy, 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 equation calculates the thermal energy change when a material's temperature changes?

    • 0.5 x m x v squared
    • m x g x h
    • m x c x delta theta
    • I x V x t

  2. What unit is used to measure specific heat capacity?

    • W/kg°C
    • J/°C
    • J/kg°C
    • J/kg

  3. What are the standard SI units for specific heat capacity?

    • J per degree Celsius
    • J/kg degrees Celsius
    • J/kg
    • W/kg degrees Celsius

  4. How much energy is needed to heat 2 kg of water by 10 degrees Celsius, if its specific heat capacity is 4200 J/kg degrees Celsius?

    • 84000 J
    • 8400 J
    • 420 J
    • 4200 J

  5. A 0.5 kg block of metal absorbs 1000 J and warms by 10 degrees Celsius. What is its specific heat capacity?

    • 5000 J/kg degrees Celsius
    • 500 J/kg degrees Celsius
    • 20 J/kg degrees Celsius
    • 200 J/kg degrees Celsius

  6. A 3 kg material with specific heat capacity 900 J/kg degrees Celsius cools by 20 degrees Celsius. How much thermal energy does it release?

    • 18000 J
    • 135000 J
    • 54000 J
    • 2700 J

  7. Which quantity is directly proportional to the thermal energy change of a substance heated at constant specific heat capacity?

    • Frequency
    • Electrical resistance
    • Temperature change
    • Density only

  8. What does a material with a high specific heat capacity require more of for temperature changes?

    • Kinetic energy
    • Magnetic force
    • Thermal energy
    • Electrical charge

  9. In an electric heater practical, electrical energy primarily transfers to which store in the block?

    • Chemical store
    • Thermal store
    • Elastic store
    • Magnetic store

  10. A 0.2 kg aluminium block with specific heat capacity 900 J/kg degrees Celsius is heated from 20 to 50 degrees Celsius. What energy is stored?

    • 27000 J
    • 5400 J
    • 1800 J
    • 900 J

  11. A heater supplies 3000 J to 1.5 kg of liquid, with no energy lost. What temperature rise results if specific heat capacity is 4000 J/kg degrees Celsius?

    • 20 degrees Celsius
    • 0.5 degrees Celsius
    • 2 degrees Celsius
    • 5 degrees Celsius

  12. Which substance is best suited for thermal storage due to a very high specific heat capacity?

    • Glass
    • Iron
    • Water
    • Copper

  13. A kettle heats 1.2 kg of water from 10 to 100 degrees Celsius using specific heat capacity 4200 J/kg degrees Celsius. What energy is needed?

    • 453600 J
    • 403200 J
    • 504000 J
    • 50400 J

  14. An engineer finds that a sample of mass 2 kg gains 16800 J and warms 4 degrees Celsius. Which specific heat capacity is correct?

    • 2100 J/kg degrees Celsius
    • 8400 J/kg degrees Celsius
    • 1050 J/kg degrees Celsius
    • 16800 J/kg degrees Celsius

  15. When a substance cools down, what happens to its thermal energy store?

    • Remains constant
    • Decreases
    • Doubles
    • Increases

  16. Why must temperature change be measured in degrees Celsius in the specific heat equation?

    • To keep values smaller
    • Kelvin cannot be used
    • Matches specific heat units
    • Required by SI standards

  17. Two equal masses receive identical energy. Substance A has lower specific heat capacity than B. Which warms more?

    • Substance A
    • Both warm equally
    • Substance B
    • Neither warms

  18. A 2 kg mass of water is heated and its temperature rises by 25 degrees Celsius. Its specific heat capacity is 4200 J/kg degrees Celsius. What is the energy change?

    • 420000 J
    • 8400 J
    • 84000 J
    • 210000 J

  19. Which equipment is essential to measure temperature change when finding specific heat capacity?

    • Barometer
    • Voltmeter
    • Ammeter
    • Thermometer

  20. What happens to the temperature of a substance during a change of state?

    • It drops to zero
    • It increases rapidly
    • It fluctuates randomly
    • It stays constant

All AQA Physics quizzes