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实验预习 测量力的大小的工具叫测力计，实验室中常用的测力计是弹簧秤．使用弹簧测力计时要了解它的构造和原理，要注意观察它的量程、最小刻度值和零刻线，使用时必须按正确的方法进行操作与读数． 思考题 （１）弹簧秤的刻度是均匀的，这是因为弹簧秤是根据。的道理制成的。
Pre-lab Exercise The tool for measuring the force is called the dynamometer. The dynamometer commonly used in the laboratory is the spring balance. When using a spring force meter to understand its construction and principle, it is important to observe its range, minimum scale, and zero line, and operate and read in the correct way when it is used. Questions for thinking (1) The scale of the spring scale is uniform, because the spring scale is based on. The truth is made of.