2.1. Pressure Variation with Location

Try these first

1. 1.

   What happens to pressure as you go deeper in a fluid?

   Hint

   Think about the weight of fluid above.

2. 2.

   What is a manometer used for?

   Hint

   Consider pressure at two different points.

3. 3.

   What is the formula to calculate pressure at a certain depth in a fluid?

   • P = h * ρ * g
   • P = ρ * g
   • P = h * g

   Hint

   Remember the components that contribute to pressure.

4. 4.

   True or False: Pressure decreases with depth in a fluid.

   • True
   • False

   Hint

   Think about what happens in a swimming pool.

5. 5.

   A tank contains 5m of water on top of 1m of oil (relative density 0.85). Calculate the pressure at the base of the tank.

   Hint

   Don't forget to sum both contributions of pressure.

6. 6.

   A pipe carries water and has a height difference between two points of 4m. If the density of water is 1000 kg/m³, calculate the pressure difference.

   Hint

   Use the depth difference and water's density.