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Mechanical advantage is a measure of the force amplification achieved by using a tool, ... The lever operates by applying forces at different distances from the fulcrum, ... a from the fulcrum to where the input force is applied (point A) is greater than the .... belt drives the pitch radius of the input and output pulleys must be used.


A simple machine that exhibits mechanical advantage is called a mechanical advantage device - e.g.: Lever: The beam shown is in static equilibrium around the fulcrum. ... It has an mechanical advantage (MA) = 1 (assuming frictionless bearings in the pulley), moving no mechanical advantage (or disadvantage) however ...


While machines can provide a mechanical advantage of greater than 1.0 (and ... is almost equal to the work it receives, because energy used up by friction is quite ... Lever. A lever is a bar resting on a pivot. Force (effort) applied at one point is ...


A mechanical advantage greater than one means that you have to put less effort into the system than if you had to do the work directly. Usually this is by ...


A device that does work with only one movement and changes the size or direction of a ... A lever with a mechanical advantage greater than one is used to ____.


1 Some machines don't multiply the force that is applied to them. 2 Under certain ... 9 A lever with a mechanical advantage greater than 1 is used to a increase ...


Apr 20, 2012 ... 15.3: Simple Machines DRAFT. Difficulty Level: At Grade Created by: CK-12. Share. Add to Library. Turn In. Read. Resources. Details. Loading.


The force used in this equation is the force in the direction of motion. ... Multiplying Force (mechanical advantage greater than 1) ... Example: a pulley, a lever.


Figure 1: Gears are sometimes used to get a speed advantage. ... You can say the mechanical advantage is bigger than 1. ... If a lever makes it harder to lift a heavy weight, the input force is greater than the output force, and the mechanical  ...


In science, the word work has a different meaning than you may be familiar with. .... If the output force is bigger than the input force, a machine has a mechanical advantage greater than one. ... In use, a lever has both an effort (or applied) force and a load (resistant .... How much power is used if this work is done in 20 sec? 3 .