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An inclined plane makes it easier to raise something heavy, like a rock. ... Because work is force multiplied by distance, the amount of work remains mostly the same, In a steep ramp, it will be harder to push the rock/load but you won't need to push it as far.

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Machines that use screws to push against other objects are called presses. A press is used to make cider or wine by squashing fruit to extract the juice from it. Printing presses were also used to make books. The up and down force generated by ascrew can also be used to hold things together.

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www.explainthatstuff.com

A pulley is a wheel with a groove along its edge, that holds a rope or cable. Usually, two or more pulleys are used together. When pulleysare used together in this way, they reduce the amount of force needed to lift a load. A crane uses pulleys to help it lift heavy loads

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A wedge is a triangular shaped tool that is thicker on one end (the blunt end) and thinner on the other end (the edge.) A slice of pie is the shape of a wedge.Wedges are one of the six simple machines. It can be used to separate two objects, split an object, lift an object, or hold an object in place.

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The wheel and axle are one of six simple machines identified by Renaissance scientists drawing from Greek texts on technology. The wheel and axleconsists of a wheel attached to a smaller axle so that these two parts rotate together in which a force is transferred from one to the other.

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how it works:A lever works by reducing the amount of force needed to move an object or lift a load. A lever does this by increasing the distance through which the force acts. ... You will see that levers neither increase nor decrease the amount of total effort necessary