Lever - a rod balanced on a fixed point that can help lift a heavy object up with less effort

Wheel and Axle - used to carry loads around easily

Inclined plane - any slope or ramp that makes it easier to lift something

Wedge - made of two inclined planes and used to push objects apart

Screw - an inclined plane wrapped into a spiral

Pulley - uses wheels and rope to raise, lower, or move a load