Fluids and Pressure

What do we call the the amount of force exerted on a certain area?

• fluid
• pressure
• buoyant

This is a measurement of the amount of matter, or 'stuff', in an object or substance.

• volume
• density
• mass
• length

Does this image repreent a compressible fluid or an icompressible fluid?

• Compressible

• Incompressible

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 which of the following scenarios will there be more pressure applied on the ice, given that the force remains the same.

• A person kite surfing.

• A toboggan being pulled.

• A person skating

• A person walking.

A person wearing boots and a person wearing stilleto heels stand on a wooden floor. They both have the same weight. Which person exerts a greater pressure on the floor?

• boots because they have a larger surface area

• stiletto heels because they have a larger surface area

• boots because they have a smaller surface area

• stiletto heels boots because they have a smaller surface area

Pneumatic chairs in hairdressing salons depend on the relationship between volume and pressure of a gas to work. When the hairdresser pushes on the lever, the volume of gas in the cylinder decreases. What happens next?

• The gas pressure increases and the chair is released back down.

• The gas pressure decreases and the chair is released back down.

• The gas pressure increases and the chair is pushed up.

• The gas pressure decreases and the chair is pushed up.

When force increases while surface area remains constant...

• pressure increases

• pressure decreases

• pressure stays the same

• pressure increases then decreases