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4.3. Density and pressure
A subsection of Physics, 9702, through 4. Forces, density and pressure
Listing 10 of 120 questions
Use Define density. Liquid of density ρ fills a container to a depth h, as illustrated in . h area A The container has vertical sides and a base of area A. State, in terms of A, h and ρ, the mass of liquid in the container. Hence derive an expression for the pressure p exerted by the liquid on the base of the container. Explain your working. Examiner’s Use The density of liquid water is 1.0 g cm–3. The density of water vapour at atmospheric pressure is approximately 1600 g cm–3. Determine the ratio volume of water vapour volume of equal mass of liquid water , ratio = mean separation of molecules in water vapour mean separation of molecules in liquid water . ratio = State the evidence for the molecules in solids and liquids having approximately the same separation, strong rigid forces between molecules in solids. strong: rigid:
9702_s07_qp_2
THEORY
2007
Paper 2, Variant 0
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Questions Discovered
120