Fluid Pressure Flashcards

Flashcards about Fluid Pressure

What is the formula to calculate Pressure?

Pressure = Force / Area

What are the units of Force, Area, and Pressure?

Force: Newton (N), Area: Square meter (m²), Pressure: Pascal (Pa)

What is a fluid?

A substance that assumes the shape of its container; both liquids and gases are fluids.

What determines the pressure a fluid exerts if it's not moving?

Depth and the type of fluid

What happens to air pressure as altitude increases?

Air pressure decreases

What is the air pressure at sea level?

About 101 kPa

Why aren't we crushed by air pressure?

The pressure inside your body balances the air pressure outside.

Pressure

Is the result of a force distributed over an area.

Pressure’s formula

Force/Area

Force’s formula

Pressure•Area

Area’s formula

Force/Pressure

The unit of force

Newton (N)

Unit of area

square meter (m2)

SI unit of pressure

Pascal (Pa)

Pascal definition

A pascal is one newton per square meter (N/m2)

Does water pressure increase or decrease with the depth?

Water pressure increases as depth increases