A ____ is any device that uses energy to perform some activity The word "machine" is derived from the Latin word which means ____ A ____ rotates about its axis Two pieces of metal can be joined into one piece by ____ If two shafts are not permanently coupled to each other, this coupling is called a ____ A simple machine is a device that transforms the direction or magnitude of a force without ____ any energy ____ and ____ are simple machines Friction clutches are used where the shafts ____ to be connected while running Many parts of a machine are ____

Machine elements

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