Pressure and Depth
2 marks · NormalA mercury column in a barometer stands at 0.60 m high. The density of mercury is 13,600 kg/m³. Use g = 10 N/kg.
Calculate the atmospheric pressure in Pascals.
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81600 Pa (±200)
Also accept: 81600 or 81600 Pa
Common mistakes: using wrong g or ρ
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Marking points
M1 · 1 mark · Substitutes correct values into formula.
A1 · 1 mark · Finds 81600 Pa. (follow-through)
Worked solution