Fluid Mechanics Quiz

What is the definition of viscosity?

• The mass of a fluid

• The resistance of a fluid to flow

• The amount of space a fluid occupies

• The temperature of a fluid

Which of the following describes laminar flow?

• Smooth and orderly flow

• Chaotic and irregular flow

• Flow with high turbulence

• Flow that only occurs in gases

According to Bernoulli’s Principle, what happens to the pressure in a fluid as its velocity increases?

• The pressure increases

• The pressure decreases

• The pressure remains the same

• The pressure fluctuates

What principle explains why objects float or sink in fluids?

• Bernoulli’s Principle

• Continuity Equation

• Archimedes’ Principle

• Pascal’s Principle

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

• The density of the fluid

• The volume of the object

• The shape of the object

• The depth at which the object is submerged

In turbulent flow, which of the following is true?

• The flow is smooth and predictable

• The flow is chaotic and can mix easily

• The flow has a constant speed

What does surface tension in a fluid refer to?

• The weight of the fluid

• The elastic tendency of a fluid's surface

• The speed of fluid flow

• The pressure of a fluid at rest

Which of the following applications uses fluid dynamics principles?

• Designing an airplane wing

• Measuring temperature

• Calculating distance

• Making electricity

Tags

NGSS.MS-ETS1-4

If the diameter of a pipe decreases, what happens to the fluid velocity if the flow rate remains constant?

• The velocity decreases

• The velocity remains the same

• The velocity increases

• The fluid stops moving

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

• Increases viscosity

• Decreases viscosity

• Does not affect viscosity

• First increases, then decreases viscosity

Tags

NGSS.MS-PS1-4