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# Pressure & Friction

### learn about these two subjects

Friction makes things........... move and stop
friction is the force we feel when two things are rubbed together
friction is a force
the harder that things are rubbed together,the more.. friction there is
friction turns work into heat
is there friction in space yes!
friction comes from magnetic forces
can friction be controlled? yes
friction helps trains and everything else get started with... traction
can air cause friction? yes!
can some things naturally produce their own friction? yes
can pressure push water out of a hose? yes
How can hovercrafts float the can float because of air pressure
where is pressure? everywhere
pressure is a constant force on..... all directions at once
if you ever get caught in quicksand or ice should you lie down or stand up? lie down to spread out the pressure
what kind of pressure can make a car go up and down? hydraulics
what makes the hydraulics work? air pressure is pumped into a cylinder
if there is not pressure we have a ... vacuum
pressure can push in all directions at.... anytime
watch as Bill Nye takes the cup of air underwater. The water pressure pushes the air up so that the same amount of air is taking up less space. The air is .... pressure!
Created by: Kate8

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