牛顿第二运动定律实验验证的数据分析研究

Data analysis and research on experimental verification of Newton's second law

牛顿第二运动定律在大学物理中具有重要意义,对它的实验验证同样也非常重要。在实验操作过程中要注意气垫导轨调平,并在调平基础上测量黏性阻尼系数。在考虑黏性阻力的影响下,分别采用最小二乘法和图像法两种方法对实验数据进行拟合,同时对处理结果进行分析和讨论。数据结果表明,拟合值和实际值在实验误差允许范围内,牛顿第二运动定律得到了较好的实验验证。

Newton's second law is of great importance in university physics,so is the experimental verification of it.In the course of experimental operation,the leveling of air cushion track was payed attention to measure the viscous damping coefficient.Under the influence of viscosity resistance,the least square method and figure method were used to fit the experimental data,and the processing results were analyzed and discussed.The results show that the fitting value and the actual value are within the allowable range of experimental error,and Newton's second law is well verified by experiments.