11.7.1. Examples in Nature and Design

Try these first

1. 1.

   What is buoyancy?

   Hint

   Think about what happens when you place a ball in water.

2. 2.

   Define Archimedes' Principle.

   Hint

   Recall how it explains why ships float.

3. 3.

   What causes buoyancy?

   • Weight of the object
   • Pressure differences in the fluid
   • Temperature variation

   Hint

   Think about how pressure varies with depth.

4. 4.

   True or False: The metacenter is always above the center of gravity.

   • True
   • False

   Hint

   Recall how stability is defined.

5. 5.

   A boat has a center of gravity located above the metacenter. Discuss the implications of its stability and suggest design modifications.

   Hint

   Consider how weight distribution affects stability.

6. 6.

   Calculate the buoyant force acting on a submerged object in seawater with a volume of 0.5 m³.

   Hint

   Remember to account for the specific gravity of seawater.