Exam of physics

Category of sound waves is :

• Audible waves

• Speed waves

Describe fluids at rest?

• Fluid statistics

• Fluids

Which grammar we use it to find the pressure?

• dF = P dA

The unit of pressure is :

• N/m

Device used to measure the pressure of the atmosphere:

• Manometer

• Barometer

Which one is ideal fluid flow ?

• The fluid is non viscous

• Laminar flow

• Hook’s Law

• Bernoulli’s Equation

Unit of density is:

• Kg/m

There is two main types of fluid dynamics:

• 1/Laminar flow or steady flow . 2/ Turbulent flow.

• 1/ Buoyant force . 2/ diagram of a hydraulic press .

Is a measure of the degree of deformation:

• Stress

• Strain