Pressure and Depth

2 marks · Easy

A container is filled with glycerol to a height of 2.0 m. The density of glycerol is 1260 kg/m³. Take g = 10 N/kg. What is the pressure difference between the top and the bottom of the glycerol?

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25,200 Pa (±200)

Also accept: 25200 Pa

Common mistakes: Calculation error

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Marking points

M1 · 1 mark · Values substituted into correct formula

A1 · 1 mark · Final pressure difference correctly calculated with units.

Worked solution

p = h × ρ × g = 2.0 × 1260 × 10 = 25,200 Pa.