Hydrostatics

Question 1

What is hydrostatics?

Question 2

How does pressure vary with depth?

Answer 2

As depthincreases, pressure increases proportionally.The depper you go

This is because deeper layers experience the weight of the fluid above them.
mathematically: P = Pᵢ + ρgh
P = total pressure at depth,
Pᵢ = atmospheric pressure at the surface (if applicable),
𝜌 = density of the fluid (kg/m³),
𝑔 = acceleration due to gravity (9.81 m/s² on Earth),
ℎ = depth in the fluid (m)

Question 3

What is Pascal’s Principle

Answer 3

This is the principle that stes that any prssure applied to an enclosed liquid is trasmitted undmiminished to every point of the fluid

Question 4

What is archemdeis principle?

Answer 4

THe priciple that steas that a body which is completly submerged in a fluid experinces an upwardforce which is equal in magnitude to the weight of the fluid dispaced by the object

Know how to prove archemdis principle

Question 5

What are the laws of Flotation?

Answer 5

The law that states that a body will float in a liquid, if the weight oof the body is equal to the weight of the liquid

Question 6

Describe fuilds in motion?

Answer 6

-There is no internal friction betweenlayers of fluid (zero viscoscity)
-The desnsity of the fluid reamins the same throught the fluid (non-compressabiliyt)
-The fluid particles fallow smooth predtivble flow lines (streamlin eor laminar flow)

Question 7

What is Viscosity?

Answer 7

AN internal frictinal force that acts between its diffrent layerswhich opposes thei realative motion

SI unit Nsm⁻²
mathematically

Question 8

what is Poiseulle’s law

Answer 8

Describes the flow rate of a fluid through a cylindrical pipe.
-Flow Rate Depends on Pipe Radius
-Flow Rate Increases with Pressure Difference
-Flow Rate Decreases with Viscosity
-Flow Rate Decreases with Pipe Length

mathematically
v =