Which of the following does not describe what a machine does? multiply force, multiply energy, change the direction of a force, or work.



  1. 0 Votes

    Presuming you mean simple machines in the classical sense, and not a machine in the same sense that the LHC is a machine, then multiply energy is the correct answer. According Archimedes, machines are force multipliers, and force is a product of mass multiplied by acceleration, while energy, in einsteinian terms, is a product of mass multiplied by the speed of light, squared. Simple machines deal with the redistribution of forces, either by changing their direction (like a lever), or multiplying the force by compacting it (like a wedge). And a machine that doesn’t work isn’t a machine.

    I hope this helped!

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