What does pressure describe in the context of fluid mechanics?

• Pressure describes the upward force exerted by a fluid.

• Pressure describes a force spread over an area.

• Pressure describes the relationship between velocity and acceleration.

• Pressure describes the motion of objects in one dimension.

What does buoyancy describe?

• The force spread over an area.

• The upward pressure exerted by a fluid that causes objects to float.

• The relationship between pressure and fluid motion.

• The change in velocity and acceleration of an object.

What does Fluid Motion & Bernoulli’s Law describe?

• The upward pressure exerted by a fluid.

• The force spread over an area.

• The relationship between pressure and fluid motion.

• The change in motion of objects acted on by a net force.

What is the definition of density in the context of fluids?

• Ratio of volume to mass

• Ratio of mass to volume

• Ratio of pressure to volume

• Ratio of force to area

Which equation describes the pressure exerted by a force on a surface?

• P = A/F

• P = F/A

• P = F × A

• P = A - F

What is the gauge pressure of a vertical column of fluid described by?

• P_gauge = p/gh

• P_gauge = pgh

• P_gauge = gh/p

• P_gauge = ghp

What is the nature of the buoyant force exerted on an object by a fluid?

• A net downward force

• A net upward force

• A lateral force

• A rotational force

What is the magnitude of the buoyant force exerted on an object by a fluid equivalent to?

• The weight of the fluid displaced by the object

• The volume of the object

• The density of the fluid

• The surface area of the object

What does the continuity equation for fluid flow describe in incompressible fluids?

• Conservation of mass flow rate

• Conservation of energy

• Conservation of momentum

• Conservation of volume

According to Bernoulli’s equation, what is conserved in fluid flow?

• Mechanical energy

• Mass

• Volume

• Temperature