Year 8 Pressure

True or false:

Pressure is determined by force and area.

• true

• false

True or false:

A larger area results in a smaller pressure.

• true

• false

True or false:

Pressure = Force ÷ Area

• true

• false 

True or false:

An object in water will have a higher pressure acting on the top of it compared with the bottom of it.

• true

• false

The unit for unit for pressure is N/m³?

• N/m³

• N/m²

• N/m

Does a large force concentrated over a small area result in a large or small pressure?

• large

• small

If an object weighs 8000 N and its area in contact with a surface is 2 m², what pressure does it exert on the surface? (don’t forget units)

• 4000 N/m²

• 4000 N/m³

• 16000 N/m²

• 16000 N/m

Would the top of a mountain or the bottom of the ocean exert a larger pressure on an object?

• top of a mountain

• bottom of the ocean

True or false:

Pressure can be transmitted (passed) more effectively by a gas than a liquid.

• true

• false

Diagram shows the design of a dam. Why does the thickness of the dam increase with its depth?

• The design of this structure is stronger.

• Water pressure increases with depth.

• The cost of construction is lower.

• Water pressure acts uniformly in all directions.

Tags

NGSS.MS-ETS1-1