Pressure and depth
2 marks · EasyA liquid has a density of 1100 kg/m³. The pressure difference between two points is measured as 22,000 Pa. Gravitational field strength is 10 N/kg. Calculate the difference in depth between the two points.
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2 m (±0.05)
Also accept: 2.0
Common mistakes: Not rearranging formula correctly; Incorrect division
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Marking points
M1 · 1 mark · Shows correct rearrangement: h = p / (ρ × g)
A1 · 1 mark · Calculates h correctly: 2 m
Worked solution