物理学是用以解释自然万物之理的学科,它创建于伽利略和牛顿的年代,经过三百多年的发展,已经成为一门体系完整、理论严谨、逻辑性强、分支众多的基础科学。物理学研究范围非常广泛,大至宇宙、小至粒子等一切物质存在的形态和基本运动规律。它以数学语言为工具,以实验为检验正确性的唯一标准。因此,物理学决不能脱离实验,实验是理论的基石。但是,仅仅依靠实验也是不行的,实验需要理论的正确分析和引导。实验和理论的关系 Physics is a discipline used to explain the reason of nature. It was founded in the era of Galileo and Newton. After three hundred years of development, physics has become a basic science with complete system, rigorous theory, strong logic and numerous branches. Physics research scope is very wide, ranging from the universe, as small as particles and all other forms of material existence and basic laws of movement. It uses mathematical language as a tool to experiment as the sole criterion for testing correctness. Therefore, physics can not be divorced from experiment, experiment is the cornerstone of theory. However, it is not enough to rely solely on experiments. Experiments need theoretical analysis and guidance. The relationship between experiment and theory