Fluid Mechanics

Question 1

Formula for fluid pressure

Answer 1

P= rho* h* g
Density, Kg/m^3
Acceleration due to gravity m/s^2

Question 2

Formula for change in pressure given a change in depth

Answer 2

🔺 P= rho🔺 h g

Question 3

Difference between liquids & fluids

Answer 3

Liquids are non-compressable

Question 4

Is gas a fluid?

Answer 4

Yes

Question 5

What does pascals principle state?

Answer 5

Applying pressure to a confined liquid will increase the pressure in every part of the liquid by that amount

Question 6

What does pascals principle tell us about how pressure 1 effects pressure 2?

Answer 6

P1 = P 2

Question 7

According to pascals principle pressure is equal but what about force & what changes it?

Answer 7

Force is affected by area
F1/A1=F2/A2
If area 2 is larger so is the force

Question 8

How do you derive the mechanical advantage?

Answer 8

Force you get out divided by force you put in
F2/F1

Question 9

What does Archimedes principle state?

Answer 9

The upward buoyant force on a submerged body is equal to the weight of the said that the body displaces

Question 10

How do you calculate boyant force?

Answer 10

Fb=Vrohg
Fb, boyant force
V, volume of object / fluid displaced
g, acceleration due to gravity
Roh, density of fluid