Physics Physics Fluid Dynamics

Question 1

What is the SI unit of pressure?

Accepted Answer

Pascal

Answer

Newton

Answer

Joule

Answer

Watt

Question 2

What is the buoyant force on a submerged object equal to, according to Archimedes' principle?

Accepted Answer

Weight of fluid displaced

Answer

Weight of the object

Answer

Volume of the object times g

Answer

Mass of the object times g

Question 3

Which property of a fluid describes its resistance to flow?

Accepted Answer

Viscosity

Answer

Density

Answer

Pressure

Answer

Surface tension

Question 4

In the hydrostatic pressure equation P = P₀ + ρgh, what does g represent?

Accepted Answer

Gravitational acceleration

Answer

Gas constant

Answer

Gravitational potential

Answer

Gauge pressure

Question 5

The continuity equation in fluid dynamics is based on which conservation law?

Accepted Answer

Conservation of mass

Answer

Conservation of energy

Answer

Conservation of momentum

Answer

Newton's third law

Question 6

Which of the following is typically treated as an incompressible fluid?

Accepted Answer

Water

Answer

Air

Answer

Steam

Answer

Carbon dioxide