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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 a mechanical advantage (MA) = 1 (assuming frictionless bearings in the pulley), moving no mechanical advantage (or disadvantage) however ...

Mechanical advantage is a measure of the force amplification achieved by using a tool, ... The lever is a movable bar that pivots on a fulcrum attached to or positioned ... (point A) is greater than the distance b from fulcrum to where the output force is .... belt drives the pitch radius of the input and output pulleys must be used.

www2.phy.ilstu.edu/pte/489.01content/simple_machines/simple_machines.html

While machines can provide a mechanical advantage of greater than 1.0 ... to the work it receives, because energy used up by friction is quite small. ... The IMA of a lever can be less than or greater than 1 depending on the class of the lever.

education.jlab.org/jsat/powerpoint/work_and_simple_machines.ppt

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 .

www.studystack.com/flashcard-1107609

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 ____.

www.teachengineering.org/lessons/view/cub_simp_machines_lesson03

Aug 8, 2017 ... Students are introduced to three of the six simple machines used by many ... Discuss the mechanical advantage of a lever, pulley and .... Most simple machines provide a mechanical advantage greater than 1 (MA > 1) so that ...