Principles of Fluid Mechanics

Question 1

What are the three principles in fluid mechanics?

Answer 1

Pascal’s principle, Archimedes principle and buoyancy, and Bernoulli’s principle

Question 2

Any change in pressure applied in a completely enclosed fluid is transmitted undiminished to all parts of the fluid and enclosing walls.

Answer 2

Pascal’s principle

Question 3

It uses a confined liquid to transport from input to output (example of Pascal’s Principle)

Answer 3

Hydraulic lift

Question 4

The buoyant force on an object is equal to the weight of the fluid displaced by the object. The floating of the object depends on whether the average mass density of the object is greater or less than the fluid.

Answer 4

Archimedes’ principle and buoyancy

Question 5

It is a kind of force that lifts an object to float on water

Answer 5

Buoyant Force

Question 6

For horizontal flow, an increase in velocity must be accompanied by a decrease in pressure.

Answer 6

Bernoulli’s principle

Question 7

In Bernoulli’s Principle,

___ pressure leads to ___ air velocity

Answer 7

High, low

Question 8

This is the term used if the average mass density is the same as the fluid mass density.

Answer 8

Neutral buoyancy

Question 9

READ ONLY

Answer 9

1. Buoyant force > Object’s weight = Float
2. Buoyant force < Object’s weight = Sink
3. Buoyant force = Object’s weight = Suspended at Depth