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Simple Machines (Inclined Plane (How it works (This allows you too exert…
Simple Machines
Inclined Plane
An inclined plane is a flat, sloped surface
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Mechanical Advantage
You can determine the ideal mechanical advantage of an inclined plane by dividing the length of the incline by its height
Wedge
A wedge is a device that is thick at one end, and tapers to a thin edge at the other side
How it works
instead of using an object along the inclined plane, you move the inclined plane itself.
Mechanical Advantage
The ideal mechanical advantage of a wedge is determined by dividing the length of the wedge by its width
Screws
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How it works
When you twist a screw into a piece of wood, you exert an input force on the screw
Mechanical Advantage
The ideal mechanical advantage of a screw is the length around the threads divided by the length of the screw.
Wheel and Axle
A wheel and axle id a simple machine made of two circular or cylindrical objects fastened together that rotate about a common axis.
How it works
When you use a screw driver, you apply an input force to turn the handle.
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Pulley
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How it works
You use a pulley by pulling on one end of the rope, the input force.
Types of Pulleys
The ideal mechanical advantage of a pulley is equal to the number of sections of rope that support the object.
Levers
A lever is a rigid bar that is free to pivot, or rotate, on a fixed point. The fixed point that a lever pivots around is called the fulcrum.
Mechanical Advantage
the ideal mechanical advantage of a lever is determined by dividing the distance from the fulcrum to the input force by the distance from the fulcrum to the output force
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Compound Machines
A compound machine is a machine that utilizes two or more simple machines. The ideal mechanical advantage of a compound machine is the product of the individual ideal mechanical advantages of the simple machines that make it up.