图像是指以几何线条和几何符号等图形来形象地反映物理过程、物理现象或者物体与物质的各类特征和变化规律.在进行抽象思维的同时,借助图像的视觉感知,有助于理解和记忆物理知识,准确把握物理量之间的定性和定量关系,深刻理解问题的物理意义. Image refers to geometrical lines and geometric symbols and other graphics to visually reflect the physical processes, physical phenomena or various characteristics and changes in the laws of objects and materials. In the abstract thinking at the same time, with the help of the visual perception of the image, help understanding and Memorize physical knowledge, accurately grasp the qualitative and quantitative relationship between physical quantities, and deeply understand the physical meaning of the problem.