Mechanical advantage refers to using less effort to move a load or an object at a greater distance by means of a machine. The system that performs mechanical advantage is called a mechanical advantage device. This term is commonly used in physics and engineering.
NOUN [MECHANICS]
1.
the ratio of output force to the input force applied to a mechanism.
Source: Dictionary.com
Mechanical advantage in physics and engineering refers to the rate of efficiency and speed a machine has on the work you are doing, thus the higher the mechanical advantage the easier the work is done.
A mechanical advantage is the force ratio that is produced by a machine against the force that is applied used in accessing the machine performance. It is calculated by dividing the output force with the input force; therefore mechanical advantage =output force/ input force.
Mechanical advantage is the benefit that is derived by using a machine(simple or complex) to help you do work. Because of mechanical advantage it is easier to push something up a ramp then to lift the same object all at once.
Q&A Related to "What Is a Mechanical Advantage"
 The advantage a person has because a machine makes a job easier to do is called mechanical advanrage. Almost any machine would provide a substantial amount of mechanical advantage http://answers.ask.com/Science/Physics/what_is_ide...
 1. Find the mechanical advantage of a pulley system by noting how many doubled-up stretches of rope or line must shorten for the load to be lifted. Denote it with the letter n. For http://www.ehow.com/how_6573238_mechanical-advanta...
 n. The ratio of the output force produced by a machine to the applied input force. http://www.answers.com/topic/mechanical-advantage
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