Pressure - Year 8

What is the pressure exerted by a man standing on one leg?

• Half of the pressure he exerts when standing on two legs

• The same pressure as he exerts when standing on two legs

• Twice the pressure he exerts when standing on two legs

The weight of a 100 N laser printer is spread over 0.5m². What is the pressure it exerts?

• 50 N/m²

• 200 N/m²

• 500 N/m²

What are the correct units of pressure?

• Newtons per square metre

• Coulombs

• Newtons

How do you calculate pressure?

• Area divided by force

• Force divided by area

• Force added to area

What are the correct units of force?

• Newtons per square metre

• Pascals

• Newtons

Which example increases pressure?

• A drawing pin

• Snowshoes

• A long lever

Which example reduces pressure on the ground the most?

• Wearing high heels

• Wearing skis

• Lying down flat

What states of matter are fluids?

• Liquids only

• Gases and solids

• Liquids and gases

Where is there greatest pressure?

• At the bottom of the ocean

• In the middle of the ocean

• At the surface of the ocean

What is upthrust?

• The same as gravity

• The force that water pushes floating objects up with

• A type of energy