MECHANICAL EFFICIENCY Home Page | Examples and Formulas | How to Improve your Mechanical Efficiency | Practice Questions | Practice Question Answers | Bibliography HOME PAGE The mechanical efficiency is how efficient a machine is, or in other words is the useful work a machine does compared to the effort needed to operate it. If there are no other forces acting against it the work the machine produces should be equal to the effort needed. However this perfect situation doesn't exist, there are always other forces such as friction acting against the machine therefore making the work done always less than the effort. The formula to calculate work(W) is force(F) in newtons multiplied by distance(D) in metres.
Home Page | Examples and Formulas | How to Improve your Mechanical Efficiency | Practice Questions | Practice Question Answers | Bibliography
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The mechanical efficiency is how efficient a machine is, or in other words is the useful work a machine does compared to the effort needed to operate it. If there are no other forces acting against it the work the machine produces should be equal to the effort needed. However this perfect situation doesn't exist, there are always other forces such as friction acting against the machine therefore making the work done always less than the effort. The formula to calculate work(W) is force(F) in newtons multiplied by distance(D) in metres.