Simple Machines
Simple machines make work easier for us by allowing us to push or pull over increased distances.
There are SIX simple machines:
There are SIX simple machines:
1. Pulley - A pulley is a simple machine that uses grooved wheels and a rope to raise, lower or move a load.
2. Lever - A lever is a stiff bar that rests on a support called a fulcrum which lifts or moves loads.
3. Wedge - A wedge is an object with at least one slanting side ending in a sharp edge, which cuts material apart.
4. Wheel & Axle - A wheel with a rod, called an axle, through its center lifts or moves loads.
5. Inclined Plane - An inclined plane is a slanting surface connecting a lower level to a higher level.
6. Screw - A screw is an inclined plane wrapped around a pole which holds things together or lifts materials.
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