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IGCSE Physics 0625 · Thermal physics · 2.1.1

States of matter: past paper questions

52 real questionsasked in 7 of the last 10 exam series2019–2026usually: State, Describe, Identify, Name, Determine

Real questions on states of matter

The newest 20 of 52 written questions. Open one to see it on the real paper.

  1. 0625/32 · May/June 2026 · Q4a(i)[1]

    Name the process by which a solid becomes a liquid.

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  2. 0625/33 · May/June 2026 · Q4a(i)[1]

    Name the process by which a solid becomes a liquid.

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  3. 0625/62 · May/June 2026 · Q2a(ii)[1]

    The student: • • • • • records, in Table 2.1, the temperature shown by each thermometer at time t = 0 switches on the lamp, and at the same time starts a stopwatch waits for 4.0 minutes switches off the lamp takes the reading on each thermometer. The readings shown by the thermometers at t = 4.0 min are shown in Figure...

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  4. 0625/62 · May/June 2026 · Q2b(i)[1]

    Determine the temperature increase Δθ between t = 0 and t = 4.0 min for each card. temperature increase of white card Δθ W = °C (b) (i)

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  5. 0625/33 · October/November 2025 · Q10b(i)[2]

    The Sun consists mostly of two elements. State the names of the two elements. and

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  6. 0625/63 · May/June 2025 · Q2a[1]

    Record room temperature θ R shown on the thermometer in Fig. 2.1. θ R =

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  7. 0625/63 · May/June 2025 · Q2b[1]

    The student pours hot water into the beaker and records the initial temperature θ in Table 2.1. She then records the temperature θ every 30 s. Her values are shown in Table 2.1. Describe one technique that you use to ensure that temperature readings in this type of experiment are as accurate as possible. Table 2.1 t /...

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  8. 0625/63 · May/June 2025 · Q2c[1]

    Estimate what the temperature θ 300 is at 300 s. Use the readings from Table 2.1 to guide you. θ 300 = °C

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  9. 0625/63 · May/June 2025 · Q2d(i)[1]

    Calculate the average cooling rate x 1 during the first 90 s of the experiment. Use the readings from Table 2.1 and the equation: x 1 = θ 0 – θ 90 T where T = 90 s and θ 0 and θ 90 are the temperatures at t = 0 and t = 90 s. Include the unit for the cooling rate. x 1 =

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  10. 0625/63 · May/June 2025 · Q2d(ii)[1]

    x 2 = θ 90 – θ 180 T where T = 90 s and θ 90 and θ 180 are the temperatures at t = 90 s and t = 180 s. x 2 = Calculate the average cooling rate x 2 during the middle 90 s of the experiment. Use the readings from Table 2.1 and the equation:

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  11. 0625/63 · May/June 2025 · Q2d(iii)[1]

    Calculate the average cooling rate x 3 during the last 90 s of the experiment. Use the readings from Table 2.1 and the equation: x 3 = θ 180 – θ 270 T where T = 90 s and θ 180 and θ 270 are the temperatures at t = 180 s and t = 270 s.

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  12. 0625/61 · October/November 2024 · Q2b[1]

    Complete the column headings in Table 2.1.

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  13. 0625/61 · October/November 2024 · Q2c[4]

    Plot a graph of temperature (y-axis) against time t (x-axis). Label your axes appropriately. You do not need to start the y-axis at 0. Draw the best-fit curve.

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  14. 0625/61 · October/November 2024 · Q2d[2]

    A student states that the average rate of cooling of the water decreases as the temperature of the water approaches room temperature. State whether your graph line supports this suggestion. Explain your answer by reference to the shape of the graph line.

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  15. 0625/42 · May/June 2024 · Q4b(i)[1]

    Determine the temperature of the liquid oxygen in K. temperature = K

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  16. 0625/63 · May/June 2024 · Q2a[1]

    Record the room temperature θ R shown on the thermometer in Fig. 2.1. θ R =

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  17. 0625/63 · May/June 2024 · Q2b(i)[2]

    Describe two precautions that can be taken to ensure that temperature readings in the experiment are as accurate as possible.

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  18. 0625/63 · May/June 2024 · Q2b(ii)[1]

    Her readings are shown in Table 2.1. Add units to the column headings in Table 2.1. Table 2.1 beaker with 200 cm 3 of hot water beaker with 75 cm 3 of hot water t / θ / θ / 0 87.5 85.5 30 85.5 82.0 60 84.0 78.5 90 82.5 75.0 120 81.0 72.0 150 80.0 69.5 180 79.0 67.0

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  19. 0625/06 · Specimen 2023 · Q1a[1]

    Read and record the room temperature θ R , shown on the thermometer in Fig. 1.2. θ = ...........................................................

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  20. 0625/06 · Specimen 2023 · Q1b[2]

    Complete the headings row in Table 1.1. Complete the time t column in Table 1.1.

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What examiners said

Most candidates correctly read the thermometer with only very few giving the reading as 20.1 °C.

— Examiner report, May/June 2025, 0625/63 Q2(a) (Cambridge)

Most candidates correctly stated that the scale should be read either perpendicularly or at eye level.

— Examiner report, May/June 2025, 0625/63 Q2(b) (Cambridge)

(i)(ii) Many candidates made correct calculations and included correct units.

— Examiner report, May/June 2025, 0625/63 Q2(d) (Cambridge)

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States of matter — IGCSE Physics 0625 past paper questions | AssessPro