物理离不开图形,无论是力学知识还是电磁学知识,很多概念都是依靠图形语言来表达的。物理图形可以很好地使知识条理化,有助于学生理解物理模型。但如果在应用图形语言中不注意其规范性及科学性,不但会造成常识性的错误,而且还有可能弄巧成拙,使学生在知识的理解上造成误解,不利 Physics can not be separated from the graphics, whether it is mechanical knowledge or electromagnetic knowledge, many concepts are expressed by the graphical language. Physical graphics can well organize knowledge and help students understand physical models. However, if we do not pay attention to its normative and scientific nature in the application of graphic language, it will not only cause common-sense mistakes, but it may also be self-defeating and cause students to misunderstand the understanding of knowledge, which is unfavorable.