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Mr. Biando's Lab

Mr. Biando's Lab - What is a machine?

DefinitionTerm
A device that helps do work by either overcoming a force or by changing the direction of the applied force. Machine
The work done on a machine; the product of the input force and the distance through which the force is exerted. Work input
The work done by a machine; the product of the output force and the distance through which the force is exerted. Work output
Force time distance Calculating work
A number that tells how many times a machine multiplies a force. Mechanical advantage
output force divided by input force. Calculating mechanical advantage
A quanity, usually expressed as a percentage, that measures the ratio of work output to work input; it can be calculated by dividing work output by work input. Mechanical efficiency
Work output divided by work input multiplied by one hundred. Calculating mechanical efficiency
A machine that would be one hundred percent efficient. Ideal machine
The reason ideal machines are impossible to build. Friction of moving parts
Created by: dbiando
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