Physics 0625 · IGCSE · Density

Density — practice question

Fig. 1.1 shows a cylinder of copper with density 9000 kg/m$^3$. Its volume is 75 cm$^3$.
(a)[2]

Calculate the cylinder’s mass.

(b(i))[2]

Calculate the cylinder’s weight.

(b(ii))[1]

State one difference between weight and mass.

(c(i))[2]

Calculate the liquid’s density.

(c(ii))[1]

Explain why this cylinder does not float in the liquid.

Worked solution & mark scheme

This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “ρ = m / V, or equivalently m = ρV” …

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