PRESENTATION OUTLINE
Lever
Def-a lever is a bar that rotates around,it turns around like a fixed point.
Ex.flag pole
Ex.teeter totter
Pulley
Pulley-a pulley is a groove rope that you pull stuff.
Ex)wheel
Ex)lifting up a box
Wheel and axle
Wheel and axle-they turn together like a lever.
Ex)wheel
Ex)door nobe
Wedge
Wedge-is something that haves thick and thin ends.
Ex)blade of an axe
Ex)knife
Screw
Screw-a screw is an inclined plane plane wrapped around a cylinder.
Ex)door
Ex)table
Inclined plane
Inclined plane-this is a slopping surface that makes life easier.
Ex)ramp
Ex)man pushing a box
