Fluid Stats

Question 1

Liquids and gases are known as

Answer 1

Fluids

Question 2

What is density (p)?

Answer 2

A scalar quantity expressed in kg/m^3

Question 3

What is the equation for density (p)?

Answer 3

p = m / v

Question 4

What is Pressure (P)?

Answer 4

Scalar quantity expressed in N / m^2

Question 5

What is the equation for Pressure (P)?

Answer 5

P = F / A

Question 6

What is the equation for Absolute Pressure?

Answer 6

P = P(at surface) + pgh

Question 7

What is the equation for Gauge Pressure?

Answer 7

Pg = Pabs - Patm

Question 8

Pascal’s Principle is known as

Answer 8

∆P = F / A = F / A

Question 9

Pascal’s Principle deals with the pressure of a fluid in a

Answer 9

Completely enclosed space

Question 10

Archimedes deals with the

Answer 10

Buoyancy of objects in fluid

Question 11

What is the equation for Archimedes?

Answer 11

FB = pFluid • g • Vsubmerged

Question 12

Molecules of a liquid experience:

Answer 12

• Adhesion
• Cohesion
• Surface Tension

Question 13

What is adhesion?

Answer 13

An attractive force of a molecule of the liquid feels towards molecules of a different substrate

Question 14

What is cohesion?

Answer 14

The attractive force that a molecule of a liquid feels for other molecules of the same liquid

Question 15

Hydrodynamics is the

Answer 15

Physics of fluids that are in motion

Question 16

When there is a change in length, what equation is used?

Answer 16

Young’s (F/A) / (∆L/L)

Question 17

When there is a change in movement, what equation is used?

Answer 17

Shear’s (F/A) / (x/h)

Question 18

When there is a change in pressure, what equation is used?

Answer 18

Bulk’s ∆P / (∆V/V)