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