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Simple Machines
Word count: 586 | Approximate pages: 3
Definitions:
Machine- A device that makes work easier by changing the speed , direction, or
amount of a force.
Simple Machine- A device that performs work with only one movement. Simple
machines include lever, wheel and axle, inclined plane, screw, and wedge.
Ideal Mechanical Advantage (IMA)- A machine in which work in equals work out;
such a machine would be frictionless and a 100% efficient IMA= De/Dr
Actual Mechanical Advantage (AMA)- It is pretty much the opposite of IMA meaning
it is not 100% efficient and it has friction. AMA= Fr ....
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