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在高中物理教学中,DIS实验变得越来越重要,本文介绍了用DIS实验观察弹簧振子在竖直方向上的振动情况,通过实验操作、观察分析、数据处理,阐明弹簧的弹力与回复力之间的关系,并计算出弹簧劲度系数κ的值,使学生更加直观地理解不同弹簧有着不同的劲度系数.笔者通过对弹簧振子的传统实验以及DIS实验的对比,不仅验证了竖直方向上形变量与回复力成正比,还对实验进行了改进与创新,总结出了使用DIS实验的优点.
In the high school physics teaching, the DIS experiment becomes more and more important. This paper introduces the experiment to observe the vibration of the spring oscillator in the vertical direction with the DIS. Through experimental operation, observation and analysis, and data processing, the spring force and restoring force of the spring are clarified. The relationship between the two, and the calculation of the value of the spring stiffness coefficient κ, allows students to more intuitively understand that different springs have different stiffness coefficients. The author has not only verified the verticality by comparing the traditional experiment of the spring oscillator and the DIS experiment. The deformation in the direction is proportional to the restoring force, and the experiment is also improved and innovated. The advantages of using the DIS experiment are summarized.