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Pearson Edexcel International GCSE (9–1) · PHYSICS · Unit

Solids, Liquids and Gases

279 practice questions

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Practice questions

1–2 of 2 · Hard

  1. Question 1

    4 marks · Hard

    Explain, using ideas about mass and volume, why the density of liquids generally changes less with temperature than the density of gases.

    (a)
    [4 marks]
    Answer and see the solution →

  2. Question 2

    5 marks · Hard

    A student wants to determine the density of a cube of wood in the laboratory. She has a ruler, an electronic balance, and a container of water.

    (a)

    Describe how she should measure the mass and the volume of the wood.

    [2 marks]
    (b)

    Explain why the student should record each measurement three times and calculate an average.

    [2 marks]
    (c)

    If the mass of the cube is 72.8 g and the length of one edge is 4.0 cm, calculate the density in kg/m³.

    [1 mark]
    Answer and see the solution →