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Line 1: − + − + − For example, when an airplane is taking off, the air under the wings is exerting a force in an upward direction, gravity is exerting a force in a downward direction, the engine is exerting a force pushing the plane forward, while winds may be exerting forces from side to side. + − − − − +
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A '''vector quantity''' is physical measurement that contains directional information,<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> as opposed to a [[scalar quantity]].
A '''vector quantity''' is a measurement that contains both magnitude<ref>Stewart, James. ''Calculus: Early Transcendentals. Brooks/Cole, 2008</ref> and directional information,.<ref>Wile, Dr. Jay L. ''Exploring Creation With Physical Science''. Apologia Educational Ministries, Inc. 1999, 2000</ref> It is different from a [[scalar quantity]], which contains only magnitude.
Force is an example of a vector quantity.
Force is an example of a vector quantity, because it includes both a magnitude (push) and a direction (the direction the force is in). For example, when an airplane is taking off, the air under the wings is exerting a force in an upward direction, gravity is exerting a force in a downward direction, the engine is exerting a force pushing the plane forward, while winds may be exerting forces from side to side.
Temperature is an example of a scalar quantity. The temperature is simply a number of units: normal body temperature is 37° Celsius. You can't speak of an upward temperature, or a northeast temperature; it has no direction. The temperature [[trend]] however does have a direction ([[up]] or [[down]]).
Temperature is an example of a scalar quantity. The temperature is simply a number of units: normal body temperature is 37° Celsius. You can't speak of an upward temperature, or a northeast temperature; it has no direction.
The absolute of a vector quantity is again a scalar. If the absolute of a vector quantity is zero, the vector quantity is assumed to have all possible directions at once. Since the absolute is therefore all-encompassing, it is often argued to be identical with [[God]].<ref>Klanderman, D., Robbert, S., & Wheeler, R.: "A Tale of Two Transitions," Proceedings of the 1997 Meeting of the Association of Christians in the Mathematical Sciences, Fall 1997</ref>
For more detail on vectors, see [[vector space]].
==References==
==References==