Physics p11 pressure quiz

What is the force per unit area measured in?

• Neutons

• Pascals

• Joules

Fill in the blank: Mass per unit volume of a substance is called ________.

• Density.

• Weight.

• Volume.

• Mass.

What is a liquid or a gas referred to as?

• Solid

• Fluid

• Plasma

What is the relatively thin layer of gases that surround planet Earth called?

• Stratosphere

• Earth's atmosphere

• Troposphere

What is the pressure exerted by the weight of the atmosphere called?

• Atmospheric pressure

• Hydraulic pressure

• Osmotic pressure

Fill in the blank: The height of an object in relation to sea level is called ________.

• Altitude.

• Latitude.

• Longitude.

• Depth.

What is the upward force that acts on a body partly or completely submerged in a fluid called?

• Buoyancy

• Upthrust

• Lift

What is the action of floating in a liquid or a gas called?

• Suspension

• Flotation

• Levitation

Pressure is calculated when objects exert forces on each other or when a fluid exerts a force on an object in contact with the fluid by dividing the force by the:

• area over which the force is applied

• volume of the object

• mass of the object

• density of the fluid

The effect of area on pressure can be described using the example of caterpillar tracks.

• Caterpillar tracks increase the pressure by decreasing the area.

• Caterpillar tracks decrease the pressure by increasing the area.

• Caterpillar tracks have no effect on pressure.

• Caterpillar tracks increase the pressure by increasing the area.