Density: past paper questions
Real questions on density
The newest 20 of 70 written questions. Open one to see it on the real paper.
- 0625/31 · May/June 2026 · Q5a[2]
Hot air inside the balloon rises to the top of the balloon. Explain why the hot air rises.
See it on the paper → - 0625/31 · May/June 2026 · Q5b[3]
The hot air causes a pressure on the inside of the balloon. Explain how the hot air causes the pressure on the inside of the balloon. Use your ideas about gas particles.
See it on the paper → - 0625/41 · May/June 2026 · Q2a[3]
The mass of the metal sphere is 87 g. Calculate the density of the metal. State the unit. density = unit
See it on the paper → - 0625/41 · May/June 2026 · Q2b[6]
Describe how a student determines the volume of the sphere using a measuring cylinder.
See it on the paper → - 0625/42 · February/March 2026 · Q2a(i)[1]
State the equation that links density, mass and volume.
See it on the paper → - 0625/42 · February/March 2026 · Q2a(ii)[1]
The density of steel is 7900 kg / m 3 . The mass of a solid steel cube is 110 kg. Calculate the volume of the steel cube. volume = m 3
See it on the paper → - 0625/42 · February/March 2026 · Q2a(iii)[1]
The density of sea water is 1030 kg / m 3 . State why the solid steel cube sinks when placed in sea water.
See it on the paper → - 0625/62 · February/March 2026 · Q1b(iii)[2]
Calculate the density ρ of a glass ball. Use your values from 1(b)(i) and 1(b)(ii) and give the unit. Use the equation shown. ρ = m V ρ = unit
See it on the paper → - 0625/31 · October/November 2025 · Q2b[2]
A scientist places a piece of plastic in some water in a measuring cylinder. Fig. 2.2 shows the result. cm 3 piece of plastic 200 100 water Fig. 2.2 Compare the density of the plastic with the density of the water in Fig. 2.2. State the evidence that supports your answer. density of the plastic is
See it on the paper → - 0625/31 · October/November 2025 · Q5a[3]
Describe the arrangement, separation and motion of the metal particles.
See it on the paper → - 0625/32 · October/November 2025 · Q5a(i)[1]
Explain why the cubes of ice float in the water.
See it on the paper → - 0625/32 · October/November 2025 · Q5a(ii)[3]
The volume of a cube of ice is 3.4 cm 3 . Calculate the mass of a cube of ice. mass = g
See it on the paper → - 0625/41 · October/November 2025 · Q2b(ii)[2]
Calculate the volume of Mars. volume =
See it on the paper → - 0625/42 · May/June 2025 · Q2c(ii)[2]
Calculate the density of the wood of the metre ruler. density =
See it on the paper → - 0625/61 · May/June 2025 · Q1d[3]
Calculate the density ρ of the ball using the equation: m B ρ = V. Give your answer to a suitable number of significant figures for this experiment. Include the unit. ρ =
See it on the paper → - 0625/32 · February/March 2025 · Q2a[3]
A student determines the density of a liquid, by using the equipment shown in Fig. 2.1. 0.0 g measuring cylinder liquid in beaker balance Fig. 2.1 Describe how the student uses the equipment to determine the density of the liquid.
See it on the paper → - 0625/32 · February/March 2025 · Q2b[4]
Fig. 2.2 shows a metal block. 3.0 cm 2.0 cm Fig. 2.2 The density of the metal is 8.0 g / cm 3 . Calculate the mass of the metal block. mass = g 2.0 cm
See it on the paper → - 0625/12 · October/November 2024 · Q5[1]
Which equipment is used to find the density of an irregularly shaped stone?
See it on the paper → - 0625/43 · May/June 2024 · Q4b(i)[2]
Show that the mass of the water in the saucepan is 0.25 kg.
See it on the paper → - 0625/63 · May/June 2024 · Q1f(i)[1]
The student lowers the modelling clay into the water, as shown in Fig. 1.5. 80 70 Fig. 1.5 Record the new reading V 2 of the measuring cylinder. V 2 = cm 3 Calculate another value ρ B for the density of modelling clay. Use your value for V 2 , your W B × k readings from (d) and (e)(i) and the equation ρ B = , where k =...
See it on the paper →
What examiners said
Comprehensive responses • Most candidates recalled and rearranged the correct equation, substituting data from the question to calculate the volume of the cube. Limited responses • A few candidates did not correctly rearrange the density equation to make volume the subject. • Some candidates gave their answer to only one significant figure. In this calculation the answer expressed to two signific...
— Examiner report, February/March 2026, 0625/42 Q2(a) (Cambridge)
Comprehensive responses • Most candidates recalled and rearranged the correct equation, substituting data from the question to calculate the volume of the cube. Limited responses • A few candidates did not correctly rearrange the density equation to make volume the subject. • Some candidates gave their answer to only one significant figure. In this calculation the answer expressed to two signific...
— Examiner report, February/March 2026, 0625/42 Q2(a) (Cambridge)
Comprehensive responses • Most candidates compared the density of steel with the density of sea water to state why the cube sinks. Limited responses • A few candidates were confused about whether the more dense or less dense object sinks. • A few candidates attempted an explanation in terms of quantities other than density, for example, steel is heavier.
— Examiner report, February/March 2026, 0625/42 Q2(a)(iii) (Cambridge)
Past papers, syllabus and examiner reports © UCLES (Cambridge University Press & Assessment). Questions are matched to topics from the official syllabus. AssessPro is independent and not endorsed by Cambridge.