Pressure exists on surfaces, in air and in liquids. On surfaces it is calculated by dividing force by area. Atmospheric pressure decreases with height, and liquid pressure increases with depth.
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?
What are the correct units of pressure?
Newtons per square metre
How do you calculate pressure?
Area divided by force
Force divided by area
Force added to area
What are the correct units of force?
Which example increases pressure?
A drawing pin
A long lever
Which example reduces pressure on the ground the most?
Wearing high heels
Lying down flat
What states of matter are fluids?
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