What we like to do in physics is to quantify -- to assign numerical values to things in the physical world in order to get an approximate but accurate description of something. To do this, we typically create a process by which we can assign a number to a physical quantity by matching it to a standard (or unit) and simply counting the number of standards that fit. Let's give an example.
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This page prepared by
Edward F. Redish
Department of Physics
University of Maryland
College Park, MD 20742
Phone: (301) 405-6120
Last revision 18. September, 2005.