1.7. Final problem and conclusion

Try these first

1. 1.

   What happens to the pressure in a fluid as depth increases?

   Hint

   Refers to the formula P = ρgh.

2. 2.

   What is the formula for calculating the resultant force on a surface?

   Hint

   Think about how pressure is applied to surfaces.

3. 3.

   What is the relationship between pressure and depth in a fluid?

   • Pressure decreases with depth.
   • Pressure remains constant.
   • Pressure increases with depth.

   Hint

   Refer to the formula P = ρgh.

4. 4.

   Is buoyant force always equal to the weight of the fluid displaced?

   • True
   • False

   Hint

   Think about how floating objects displace water.

5. 5.

   A submerged gate has a pressure of 5 atm at the top and 9 atm at the bottom. Calculate the force exerted on a surface area of 1 m².

   Hint

   Recall that 1 atm = 101325 Pa.

6. 6.

   Determine the weight of a body submerged in a liquid with a density of 1000 kg/m³ if it displaces 0.01 m³ of fluid.

   Hint

   Remember the buoyant force is equal to weight of fluid displaced.