1.2. Why pressure increases with depth

Try these first

1. 1.

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

   Hint

   Consider the effect of the liquid's weight.

2. 2.

   Define Pascal's law.

   Hint

   Think about how pressure acts in liquids.

3. 3.

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

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

   Hint

   Think about what happens as you fill a container with more liquid.

4. 4.

   True or False: Pascal's law states that pressure at one point in a fluid is the same as at any other point in that fluid.

   • True
   • False

   Hint

   Remember how pressure acts equally in all directions.

5. 5.

   A tank of water has a height of 20 meters. Calculate the pressure at the bottom of the tank and discuss how this pressure would change if the tank was filled with oil (density = 800 kg/m³).

   Hint

   Use the formula for pressure in fluids.

6. 6.

   Discuss the implications of pressure differences on a submerged object at a depth of 15 meters and how it affects its buoyancy.

   Hint

   Think about how the pressure at the bottom differs from the top of the object.