Difference between revisions of "Physical body"
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| − | A body with known composition and described in an adequate physical theory is an example of physical system. | + | |
| + | In [[physics]], a '''[[physical body]]''' or [[physical object]] (sometimes simply called a [[body]] or [[object]]) is a collection of {{Wiki|matter}} with some common [[attributes]], most important, the spacial location. | ||
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| + | Examples of models of [[physical bodies]] include, but are not limited to a {{Wiki|particle}}, several interacting smaller [[bodies]] ({{Wiki|particles}} or other), and continuous media. | ||
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| + | The common {{Wiki|conception}} of [[physical objects]] includes that they have extension in the [[physical world]], although there do [[exist]] theories of {{Wiki|quantum physics}} and [[cosmology]] which may challenge[how?] this. | ||
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| + | In {{Wiki|modern}} [[physics]], "extension" is understood in terms of the {{Wiki|spacetime}}: | ||
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| + | roughly {{Wiki|speaking}}, it means that for a given [[moment]] of time the [[body]] has some location in the [[space]], although not necessarily a point. | ||
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| + | A [[physical body]] as a whole is assumed to have such quantitative properties as {{Wiki|mass}}, momentum, electric charge, other conserving quantities, and possibly other quantities. | ||
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| + | A [[body]] with known composition and described in an adequate [[physical]] {{Wiki|theory}} is an example of [[physical]] system. | ||
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[[Category:Buddhist Terms]] | [[Category:Buddhist Terms]] | ||
Latest revision as of 19:51, 3 February 2016
In physics, a physical body or physical object (sometimes simply called a body or object) is a collection of matter with some common attributes, most important, the spacial location.
Examples of models of physical bodies include, but are not limited to a particle, several interacting smaller bodies (particles or other), and continuous media.
The common conception of physical objects includes that they have extension in the physical world, although there do exist theories of quantum physics and cosmology which may challenge[how?] this.
In modern physics, "extension" is understood in terms of the spacetime:
roughly speaking, it means that for a given moment of time the body has some location in the space, although not necessarily a point.
A physical body as a whole is assumed to have such quantitative properties as mass, momentum, electric charge, other conserving quantities, and possibly other quantities.
A body with known composition and described in an adequate physical theory is an example of physical system.
