Fig. 2.1 shows a measuring cylinder holding a coloured liquid. There is $82\,\text{cm}^3$ of the liquid in the measuring cylinder. The liquid has a density of $950\,\text{kg m}^{-3}$.
(a)[3]
Calculate the liquid’s mass.
(b(i))[2]
Calculate the pressure at point X in Fig. 2.1 due to the liquid.
(b(ii))[1]
The actual pressure at point X is not the same as the value found in (b)(i). Explain why.
(c(i))[1]
Explain why the object sinks in this liquid.
(c(ii))[1]
Describe how the volume of the object can now be determined.
Worked solution & mark scheme
This 8-mark question has a full step-by-step worked solution and mark scheme. One marking point: “m = ρV, or 950 \times 8.2 \times 10⁻⁵, or 0.95 \times 82” …