CAPE Physics Unit 1 · 2013 · Paper 2 · Question 6(a)
With the aid of a diagram, derive the expression P = hρg at a depth, h, in a liquid of density, ρ.
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Practise this questionOther parts of this question
- 6(b)(i)Determine the pressure exerted on the cube at this depth. [Assume that the density of sea water is constant and equal to 1.04 × 10³ kgm⁻³][5 marks]
- 6(b)(ii)Determine the decrease in length (in mm) of any side of the cube resulting from this pressure, given that the Young's Modulus for aluminum is 69 GPa.[1 mark]
- 6(c)(i)Explain what happens to the wire at points A and B.[5 marks]
- 6(c)(ii)Using the graph, determine the strain energy in the wire at point X.[1 mark]
More practice: the rest of this paper · more Mechanical Properties of Materials questions · all CAPE Physics Unit 1 past papers