Changes

A ''scalar quantity'' is a physical measurement that does not contain directional information,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> as opposed to a [[vector quantity]].

A ''scalar quantity'' is a measurement that does not contain directional information,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref>, but only magnitude<ref>Stewart, James. ''Calculus: Early Transcendentals''. Brooks/Cole, 2008</ref>.  It is opposed to a [[vector quantity]], which contains both magnitude and direction.

An example of a scalar is temperature.  Note, however, that the change in temperature is a vector.

Every [[real number]] is a scalar, because it contains only magnitude.  Scalar quantities also exist in the real world, such as temperature.  (Note, however, that the change in temperature is a vector.)

==References==

==References==