Fluids

What is the SI unit use for hydraulic pressure?

• Kg/m³

• Pa

• Litre

• Kilometer

What is the formula for pressure?

• P=A/F

• P=FA

• P=F/A

To calculate pressure you need to know ...

• Force & Volume

• Density & Volume

• Power & Area

• Force & Area

In what direction(s) does air exert pressure?

• everywhere

• no where

• there is no pressure

• downward

Tags

NGSS.MS-ESS2-6

When force increases...

• pressure increases

• pressure decreases

• pressure stays the same

• pressure increases then decreases

When area increases...

• pressure increases

• pressure decreases

• pressure stays the same

• pressure increases then decreases

Fluids consist of

• solids and liquids

• gases

• gases and liquids

• gases and solids

As the velocity of the fluid increases, the pressure exerted by the fluid decreases is stated in 

• Archimedes' principle.

• Bernoulli's principle.

• Charles' law.

• Pascal's principle.

A substance has a mass of 16 g and a volume of 4 cubic cm, what is it's density?

• 64 g/cm3

• 20 g/ml

• 4 g/cm3

• 12 g/cm3

The pressure in liquids and gases is caused by

• the particles pressing down

• the particles pushing up

• the particles moving sideways

• the particles moving in all directions and colliding with things