Worksheet: Hydrostatic Pressure

In this worksheet, we will practice calculating the hydrostatic pressure acting at a given depth of liquid from the density and strength of gravity.


Which of the following is the best general definition of hydrostatic pressure?

  • AThe buoyant force due to a difference in density between a suspended solid and the surrounding fluid
  • BThe average pressure exerted by a moving fluid on the walls of its container
  • CThe pressure exerted by a fluid on a point within or on the boundary of the fluid
  • DThe internal stress on a suspended object at the lowest point in the surrounding fluid
  • EThe total weight of a fluid


Which of the following is the correct expression for hydrostatic pressure?

  • 𝑝: hydrostatic pressure
  • : height of the liquid
  • 𝜌: density of the liquid
  • 𝑔: acceleration due to gravity
  • A𝑝=𝑔𝜌
  • B𝑝=𝜌𝑔
  • C𝑝=𝜌𝑔
  • D𝑝=𝜌𝑔
  • E𝑝=𝑔𝜌


How tall does a column of mercury need to be to exert a pressure of 1 atmosphere at its base? Take the density of mercury as 13.6 g/mL and acceleration due to gravity as 9.81 m/s2.

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