11.3.2. Pressure Diagrams and Control Volumes

Try these first

1. 1.

   Define a control volume in fluid mechanics.

   Hint

   Think about a specific area in space.

2. 2.

   What is buoyancy?

   Hint

   Consider the lifting force when something is in water.

3. 3.

   What does a pressure diagram represent?

   • The speed of a fluid
   • The variation of pressure within a fluid
   • The temperature of a fluid

   Hint

   Think about the effects of depth in fluids.

4. 4.

   True or False: The buoyant force always acts downward.

   • True
   • False

   Hint

   Recall the definition of buoyancy.