图像是解决物理问题的重要手段,物理过程、规律大都抽象难以理解,而图像可直观地反映物理过程、规律等。利用图像理解物理问题、规律,可以帮助学生更好地掌握物理知识,也能使学生更好地理解图像本身。本文尝试用v-t图像理解匀加速直线运动规律,以期抛砖引玉。小车在表面光滑的木板上下滑,可以近似看作匀加速直线运动,小车后连接纸带,用打点计时器跟踪 Image is an important means to solve physical problems. Most of the physical processes and laws are difficult to understand, and the images can intuitively reflect the physical processes and laws. The use of images to understand physical problems and laws helps students better understand physical knowledge and enables students to better understand the image itself. This article attempts to understand the law of uniform acceleration linear motion v-t image, with a view to start a discussion. Car sliding on the smooth surface of the board, can be regarded as uniform linear acceleration, car after the connection tape, with RBI timer tracking