SCIENCE: Many Uses for Simple Machine
Wedge
Wheel and axle
Screw
Inclined plane
Pulley
Lever
Hold the door always open
Help to split the wood easy
Causes less work, less force
Use in roller coasters: help the speed always fast
Causes less effort, less work
Architect, designers.. use as they build because screws create stronger hold into wood
Pull on one-side to have the effect on the other side
Use as a part of teeter totters
Causes lever motion
Make us go forward quickly
Use in cars, trucks....
Use in windmills
Use in ceiling fans
Create less amount of work
Make sure something can be done well
Use to pull up blinds for windows
Use to hang up curtains
Use to pull water up from wells