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Simple Machines (Levers (Three class of levers (Second Class AHHH…
Simple Machines
Levers
how it works :star: - A lever is a rigid bar that is free to pivot, or rotate, on a fixed point. like a opening a paint can, when you push the handle a long distance down in order to move the lid a short distance up.
Mechanical Advantage - Ideal M.A. = Distance from fulcrum to input/ Dictance from fulcrum to output force
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Pulley
How it Works :star: - when you pull on one end of a rope, that is the input force. At the other end of the rope, the output force pulls up on the object you want to move.
Mechanical Advantage :star: - Ideal M.A. = number of sections of rope of rope that support the object
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inclined plane- a flat, sloped surface ex: A ramp is a inclined plane
how it works :star: - an inclined plane allows you to exert your input force over a longer distance. the input force you use is when you pull or push an object on an inclined plane. The output force is the force that you would need to lift the object without an inclined plane.
mechanical advantage :star: - you can determine the ideal mechanical advantage of an inclined plane by dividing the length of the incline by its height Ideal M. A. = Length of incline / Height of incline
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Compound Machines
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Ideal M.A. the product of the individual ideal mechanical advantage of the simple machines that makes it up.
