11. Fluid Mechanics

Try these first

1. 1.

   What is buoyancy?

   Hint

   Think about what happens when you drop something into water.

2. 2.

   Define Archimedes’ Principle.

   Hint

   Look for what Archimedes discovered in the bathtub.

3. 3.

   What is the principle that states an object submerged in a fluid will experience buoyant force?

   • Archimedes' Principle
   • Newton's Second Law
   • Bernoulli's Equation

   Hint

   Think of a famous scientist known for his work with buoyancy.

4. 4.

   Is stable equilibrium achieved when the metacentric height is less than the center of gravity?

   • True
   • False

   Hint

   Recall the definitions and implications of stability.

5. 5.

   A ship has a metacentric height of 1.5m and a center of gravity at 1.2m. Determine whether the ship is stable or unstable.

   Hint

   Compare the two heights directly.

6. 6.

   An object displaces 5 m³ of water. Calculate the buoyant force acting on this object.

   Hint

   Make sure to use the correct units and values for density and gravitational acceleration.