9. Fluid Mechanics

Try these first

1. 1.

   What happens to fluid pressure as depth increases?

   Hint

   Think of the weight of water stacks.

2. 2.

   Name a device that measures fluid pressure.

   Hint

   Starts with 'M'.

3. 3.

   How does pressure change with depth in a fluid?

   • It decreases
   • It remains constant
   • It increases

   Hint

   Think of what happens if you dive underwater.

4. 4.

   True or False: A manometer can measure both absolute and differential pressure.

   • True
   • False

   Hint

   Consider what type of pressures we generally care about.

5. 5.

   A tank filled with water is 10 meters high. Calculate the force exerted by the water on the bottom of the tank, given the area is 2 m².

   Hint

   Break it down into calculating pressure first.

6. 6.

   A U-tube manometer filled with mercury (density 13546 kg/m³) shows a height difference of 0.5 meters between two points in a gas system. Calculate the pressure difference.

   Hint

   Use the pressure difference formula with the given height.