Fluid Mechanics. Basic Physics II

About fluids ...

• They have cohesive forces stronger than solid

• They can flow like solids

• Only liquids are fluids

• All of them are incorrect

Pressure

• It equals force per unit of area

• It's inversely proportional to area

• The force on a summerged object always is perpendicular to surface

• All of them are correct

  
  

• Changes proportionally with depth

• Chages inversely with depth

• Depends on area of container

• It's independent of depth

What are we talking about?

• Archimedes' Principle

• Pascal's Law

• Equation of Bernoulli

• All of them are incorrect

Pressure measurements

• Absolute pressure is difference between atmospheric and manometric pressure

• Manometer is used to measure atmospheric pressure

• It´s no possible measure pressure using the hieght of a liquid

• All of them are incorrect.

It is an application of pressure measuring in Medicine.

• AID

• X RAY

• Sphygmomanometer

• Barometer

Archimedes' Principle states ...

• True

• False

Archimedes' Principle

• Only applies to object completely summerged in a fluid

• The buoyant force always is pointing down

• Does not applies to object summerged in a fluid

• Applies to object summerged in a fluid

Ideal fluid flow

• Turbulent

• Incompressible

• All of them are correct

• Viscous

Continuity Equation for fluids

• The moving mass is bigger in the bigger area

• Product (A⋅v) is the flow

• States that flow chages in the time

• The moving mass is smaller in the bigger area