在“曹冲称象”的故事中,聪明的曹冲运用了这样的一个方法,要知道大象的体重,但不能直接去称,便把问题变为容易办到的去称石头的质量,最后由石头的质量等效替代了大象的质量,曹冲的这种思维方法在物理中叫等效.所谓等效法是从事物间的等同效果出发来学习和研究物理现象、过程、规律的一种方法,它是分 In the story of “Cao Chong’s claiming to be like,” the clever Cao Chong used such a method to know the weight of the elephant, but he could not directly say it and then turned the problem into an easy-to-do-quality stone. In the end, the quality of the stone was used as a substitute for the quality of the elephant. Cao Chong’s method of thinking is called equivalence in physics. The so-called equivalent method is the starting point for studying and studying physical phenomena, processes, and laws. Method, it is divided