Question 26
HA student measures the pressure due to the liquid at different depths in two liquids, X and Y.
The Figure shows a graph of the results.
Figure
The gravitational field strength, ggg, is 10 N/kg.
a.[1]
Use the Figure to give the pressure due to liquid X at a depth of 0.30 m.
b.[3]
Use the Figure to determine the density of liquid Y.
Use the equation
P=h×ρ×gP = h \times \rho \times gP=h×ρ×g
c.[2]
Explain why the line for liquid X is steeper than the line for liquid Y.
d.[2]
A small solid object floats in liquid X but sinks in liquid Y.
Deduce what this shows about the density of the object.
15.2 Pressure in fluids Questions
132 exam-style questions on Edexcel GCSE Physics 15.2 Pressure in fluids, covering 15.2.1 Atmospheric pressure and height, 15.2.2 Pressure in fluids, 15.2.3 Pressure, force and area, 15.2.4 Pressure and depth, 15.2.5 Pressure in liquids: depth and density, 15.2.6 Upthrust, and 15.2.7 Floating and sinking. Each one has a worked solution and a mark scheme showing where the marks go.