Introduction to Hydrostatic Pressure

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Hydrostatic pressure is the pressure exerted by a fluid at equilibrium due to the force of gravity.

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Introduction to Hydrostatic Pressure

  1. 1. Today we will present alesson about hydrostatic pressure.
  2. 2. HYDROSTATICDensity Pressure PRESSURE Problems and Answer
  3. 3. Density
  4. 4. Pressure is force that acting on an object dividedby its area.Mathematically: P= Pressure ( N/m2 = Pascal) F P F= Force (N) A A= Surface Area (m2)
  5. 5. Hydrostatic pressure is the pressure exerted by a fluid atequilibrium due to the force of gravity.
  6. 6. Hydrostatic pressure can be calculated with theformula:Where:Ph = Hydrostatic pressure (Pa or N/m2)ρ = Density of liquid (kg/m3 )g = earth’s gravity (m/s2)h = Depth (m)
  7. 7. If the container is open so there is atmosphere pressure fromthe air to the surface of liquid…The pressure become: P0 = Atmospheric pressure (1 atm = 76 cmHg = 1.013 x 105 Pa) P = P0 + Ph = P0 + ρgh
  8. 8. A tube with height 50 cm filled with water. If thedensity of the water 1 gr/cm3 and the gravitationalforce is 10 m/s2 then the hydrostatic pressure in thebottom of the tube is….Calculating… Completed Calculate Known: ρ = 1 gr/cm3 = 1000 kg/m3 g = 10 m/s2 h = 50 cm = 0,5 m Asked: Ph....?
  9. 9. In the glass cylinder there are 20 cm oil. Withignoring the outside pressure, the pressure on thebottom of the cylinder is 1600 N/m2. What is thedensity of the oil?Calculating… Completed Calculate Known: Ph = 1600 N/m2 g = 10 m/s2 h = 20 cm = 0,2 m Asked: ρ....?
  10. 10. Thank you for the attention andparticipation to our presentation. Om Shanti,

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