A simple machine is a tool with one function that makes our lives easier. Simple machines can be combined with another simple machine to create the all powerful advanced machines that we know and love.
The six simples machines are the wedge, screw, wheel & axel, pulley, lever, and an inclined plane.
A wedge is like a door stopper, a hatchet head, and a knife. A screw's subtypes are a metal construction screw, a drill, and a board cutter.
A ferris wheel, a steering wheel of a car, and windmills are examples of a wheel & axle Three items that are pulleys are a flag pole pole pulley, a wench pulley, and a roller coaster pulley. A lever's examples are a seesaw, a wire cutter, and a pair of scissors. Finally, some examples of an inclined plane are a delivery ramp, a rising draw bridge, and a handicap ramp.
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