Fluid Mechanics Flashcard

Front

What principle explains why objects float or sink in fluids?

Back

Archimedes’ Principle states that an object submerged in a fluid experiences a buoyant force equal to the weight of the fluid it displaces.

Front

What does surface tension in a fluid refer to?

Back

Surface tension is the elastic tendency of a fluid's surface that makes it acquire the least surface area possible.

Front

What is the typical effect of increasing temperature on the viscosity of a liquid?

Back

Increasing temperature generally decreases the viscosity of a liquid, making it flow more easily.

Tags

NGSS.MS-PS1-4

NGSS.MS-PS3-4

Front

Which factor does NOT affect the buoyant force on an object submerged in a fluid?

Back

The shape of the object does not affect the buoyant force; it is determined by the fluid's density and the volume of the object.

Front

What is the definition of viscosity?

Back

Viscosity is the resistance of a fluid to flow, indicating how thick or thin a fluid is.

Front

What is Bernoulli’s Principle?

Back

Bernoulli’s Principle states that an increase in the speed of a fluid occurs simultaneously with a decrease in pressure or potential energy.

Tags

NGSS.MS-ESS2-5

Front

What is Pascal’s Principle?

Back

Pascal’s Principle states that a change in pressure applied to an enclosed fluid is transmitted undiminished to all portions of the fluid.

Front

What is the Continuity Equation in fluid mechanics?

Back

The Continuity Equation states that the mass flow rate of a fluid must remain constant from one cross-section of a pipe to another.

Front

How does the density of a fluid affect buoyancy?

Back

The greater the density of the fluid, the greater the buoyant force acting on an object submerged in it.

Front

What happens to the buoyant force if the volume of the object increases?

Back

If the volume of the object increases, the buoyant force also increases, as it displaces more fluid.