Chapter 9

~A quantity that measures the effects of a force acting over a distance.~

*Work*
~A quantity that measures how much a machine multiplies force or distance.~

*Power*
~A quantity that measures how much a machine multiplies force or distance.~

*Mechanical Advantage*
~One of the six basic types of machines of which all other machines are composed.~

*Simple Machines*
~A machine made of more than one simple machine.~

*Compound Machine*
~The stored energy resluting from the relative positions of objects in a system.~

*Potential Energy*
~The energy of a moving object due to its motion.~

*Kinetic Energy*
~The sum of the kinetic and potential energy of large-scale objects in a system.~

*Mechanical Energy*
~A quantity, usually expreseed as a percentage, that measures the ratio of useful work output to work input.~

*Efficiency*

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Chapter 9

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Work & Energy

Updated

2011-05-09T18:39:15Z