摘 要:重力加速度是一个非常重要的地球物理常数,因此研究重力加速度具有十分重要的现实意义。古往今来,中外物理学家已经研究出了多种测量重力加速度的方法。本文将采用单摆法、复摆法及落体法三种测量方法对重力加速度进行测量,并对实验仪器、实验原理、实验方法及注意事项进行详细说明,在实验中多次改进实验,尽量减小实验误差和系统误差,并对公式进行修正,对实验结果进行精确处理,以提高实验精度。通过对实验数据进行分析,比较和修正,从而对这三种测量方式的精度进行比较。28303 毕业论文关键词:重力加速度;单摆法;复摆法;落体法
Comparison of The Three Measurement Precision of The Gravitational Acceleration
Abstract: The gravitational acceleration is a very important geophysical constant, so the research of the gravitational acceleration has important practical significance. Since ancient times, Chinese and foreign physicists have developed a variety of methods to measure the acceleration of gravity. This article will use the pendulum method, the compound pendulum method and law of falling bodies three measurement methods to measure the gravitational acceleration, and describe the laboratory equipment, the experimental principle, the experimental methods and the precautions in detail, and conduct several improvements in the experiment, try to reduce experimental error and systematic error, and the formula is corrected, the experimental results were accurate treatment to improve test accuracy. Through the analysis, comparison and correction of the experimental data, thus to measure the accuracy of comparison on the three ways.
Key words: Acceleration of gravity; Pendulum method; Compound pendulum method; Law of falling bodies
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