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en.wikipedia.org/wiki/Mechanical_advantage_device

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 ...

en.wikipedia.org/wiki/Mechanical_advantage

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 ...

www.answers.com/Q/A_lever_with_a_mechanical_advantage_greater_than_one_is_used_to

A lever with a mechanical advantage greater than one is used to increase distance. A lever is a simple machine connected to ground by a hinge called a fulcrum ...

www.ck12.org/physics/mechanical-advantage/lesson/Mechanical-Advantage-MS-PS

Nov 1, 2012 ... The ideal mechanical advantage is always greater than the actual mechanical advantage because all ... It can be used to raise an object off the ground. ... What is the mechanical advantage of the lever in question 1?

www.springvalley.k12.wi.us/html/hillerenn/documents/C-12notes.ppt

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.