| 对机械能守恒定律条件的认识 |
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| 引用本文： | 龚劲涛,吴英.对机械能守恒定律条件的认识[J].绵阳师范学院学报,2006,25(5):30-32. |
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| 作者姓名： | 龚劲涛 吴英 |
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| 作者单位： | 绵阳师范学院理论物理研究所,四川,绵阳,621000 |
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| 摘 要： | 机械能守恒是力学中的一个重要定律,但关于守恒条件的阐述不同的编者著述却各不相同,那么他们的著述是否等效?本文从保守力、外力做功及参考系三个角度阐述了机械能守恒定律的条件,以期对理解和应用机械能守恒定律有一个全面而清楚的认识。
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| 关 键 词： | 机械能守恒 保守力 做功 参考系 |
| 文章编号： | 1672-612x(2006)05-0030-03 |
| 收稿时间： | 07 15 2006 12:00AM |
| 修稿时间： | 2006年7月15日 |
Cognition of the Conditions for the Law of Conservation of Mechanical Energy |
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| GONG Jing-tao,WU Ying.Cognition of the Conditions for the Law of Conservation of Mechanical Energy[J].Journal of Mianyang Normal University,2006,25(5):30-32. |
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| Authors: | GONG Jing-tao WU Ying |
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| Institution: | Department of Physics, Mianyang Normal University, Mianyang, Sichuan 621000 |
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| Abstract: | Law of conservation of mechanical energy is a very important law in Mechanics.But there are different expatiations of its conditions in different works.Do they represent the same meaning? To comprehend it clearly and completely,the conditions for it are analyzed and demonstrated in three aspects: conservative force,work done by extra force and reference system. |
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| Keywords: | conservation of mechanical energy conservative force doing work reference system |
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