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Published in:
1984 | OriginalPaper | Chapter
Machines
Authors : H. J. P. Keighley, F. R. McKim, A. Clark, M. J. Harrison
Published in: Mastering Physics
Publisher: Macmillan Education UK
Included in: Professional Book Archive
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A machine is any device which enables mechanical work to be done more easily. Very often this results in a small applied force being amplified into a large one, for example when a screwdriver is used to ‘lever’ a lid off a tin. Sometimes a small movement is amplified into a large one, as in a bicycle when a small pedal movement results in a much larger movement of the bicycle along a road.