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Work & Simple Machin

BMS Science

TermDefinition
simple machine basic machines used to make work easier.
input force force that is needed to do work.
output force force the machine exerts after the input force.
force can act between objects that are in direct contact or over a distance.
friction a force that holds back the movement of a sliding object.
gravity a force that causes objects to fall to the ground.
weight the force of gravity on an object.
Newton the unit of measurement of force.
work a mathematical relationship between the amount of force needed for the object to move and how far it moves.
Joule the unit of measurement of work.
mechanical advantage indicates how useful a simple machine is for performing a given task by comparing the output force to the input force period.
lever a simple machine that reduces the effort force needed to lift a heavy object by applying the force at a greater distance from the fulcrum of the lever.
pulley a simple machine that reduces the effort to lift a heavy object by applying the force through a greater distance such as pulling more rope through the pulley.
inclined plane a simple machine that reduces the effort to raise an object to a given height.
Created by: pacetej