| 用阿德伍德机验证牛顿第二定律 |
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| 引用本文： | 李克英,毕雄伟,王黎智,杨卫国,张雄. 用阿德伍德机验证牛顿第二定律[J]. 楚雄师范学院学报, 2007, 22(9): 50-53,59 |
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| 作者姓名： | 李克英 毕雄伟 王黎智 杨卫国 张雄 |
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| 作者单位： | 1. 楚雄师范学院,云南,楚雄,675000
2. 云南师范大学,云南,昆明,650092 |
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| 摘 要： | 本文给出了用阿德伍德机验证牛顿第二定律的实验原理和实验装置,介绍了用阿德伍德机的实验方法验证在总质量m不变的情况下,合外力f与加速度a的关系;在合外力f不变的情况下,1/m与a的关系。同时,给出了用阿德伍德机验证牛顿第二定律的实验结果,结果表明该方法简单可行和有一定的精度,我们在教学中使用效果较好。
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| 关 键 词： | 阿德伍德机 牛顿第二定律 加速度 合外力 质量 |
| 文章编号： | 1671-7406（2007）09-0050-04 |
Verify Newton Second Law by the Atwood Machine |
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| LI Ke-ying,BI Xiong-wei,WANG LI-zhi,YANG Wei-guo,ZHANG Xiong. Verify Newton Second Law by the Atwood Machine[J]. journal of chuxiong normal university, 2007, 22(9): 50-53,59 |
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| Authors: | LI Ke-ying BI Xiong-wei WANG LI-zhi YANG Wei-guo ZHANG Xiong |
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| Affiliation: | 1.Department of Physics and Electronic Information, Chuxiong Normal University, Chuxoing 675000, China; 2. College of physics and Electronies information, Yunnan Normal University, Kunming 650092, China |
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| Abstract: | The paper presented the experimental principle and set-up of verifying Newton second law by the Atwood machine. Introducing to the experiment method in following circumstance:(1) under the constant circumstance of total mass; the relation of resultant external force and the acceleration, (2) under constant circumstance of resultant external force, the relation of the object mass and the acceleration. At one time, the result of experiment of verifying Newton second law by the Atwood machine presented, and the result testify the feasibility and precision of the experiment. |
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| Keywords: | Atwood machine Newton second law Acceleration resultant external force mass |
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