Fluids

Front

What principle do airplanes take advantage of to fly?

Back

Bernoulli's Principle states that as the speed of a fluid increases, its pressure decreases, allowing airplanes to generate lift.

Front

What does viscosity mean?

Back

Viscosity is a measure of how easily a fluid flows; it describes the internal friction of a moving fluid.

Front

An object is buoyed up (floats) when:

Back

the buoyant force is greater than the object's weight, allowing it to float.

Front

Fluids flow from:

Back

Fluids flow from high pressure to low pressure, following the gradient of pressure.

Front

Fluid pressure is directed:

Back

Fluid pressure is directed in all directions, exerting force equally in every direction.

Front

What is Archimedes' Principle?

Back

Archimedes' Principle states that an object submerged in a fluid experiences an upward buoyant force equal to the weight of the fluid displaced.

Front

What is Pascal's Principle?

Back

Pascal's Principle states that a change in pressure applied to an enclosed fluid is transmitted undiminished throughout the fluid.

Front

What is the relationship between temperature and viscosity?

Back

As temperature increases, viscosity generally decreases, allowing fluids to flow more easily.

Front

What is the definition of density?

Back

Density is the mass per unit volume of a substance, often expressed in grams per cubic centimeter (g/cm³).

Front

What happens to the buoyant force when an object is submerged deeper in a fluid?

Back

The buoyant force remains constant as long as the object is fully submerged, regardless of depth.