Fluid Principles

The ability of a fluid to exert an upward force of an object immersed in it is

• viscosity.
• buoyancy.
• vaporization.
• thermal expansion.

The supporting force exerted by a fluid on an object immersed in it is called

• buoyant force.
• lift.
• density.
• viscosity.

According to Pascal, pressure applied to a fluid

• increases as it moves through the fluid.
• decreases as it moves through the fluid.
• fluctuates as it is transmitted throughout the fluid.
• is transmitted unchanged throughout the fluid.

A fluid's resistance to flow is its

• viscosity.
• density.
• pressure.
• buoyancy.

As the velocity of the fluid increases, the pressure exerted by the fluid decreases is stated in 

• Archimedes' principle.
• Bernoulli's principle.
• Charles' law.
• Pascal's principle.

 The buoyant force on an object is equal to the weight of the fluid displaced by the object is stated in 

• Pascal's principle.
• Archimedes' principle.
• Boyle's law.
• Bernoulli's principle.

Mass per unit volume is

• buoyancy.
• density.
• pressure.
• viscosity.

What is the SI unit for pressure? 

• pascal (Pa)
• newton (N)
• kilogram (kg)

Archimedes' Principle explains how an airplane flies. 

• True
• False

The force of a fluid weighing 10N is applied to an area measuring 2m². What pressure does the fluid create on the surface?

• 20 Nm²
• 5 N/m²
• 0.2 m²/N