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弹簧测力计是一种测量力的工具,如果我们巧妙地利用物理量之间的数量变换关系,还可以找到它另外的一些应用,从而更多地解决一些实际问题,以达到培养学生发散性思维能力及知识迁移能力的目的.1.用弹簧测力计“测”物体的厚度例1 今有一长方体铝板,长、宽分别为 a、b,试用弹簧测力计测出其厚度 h.请写出测定的方法步骤.步骤 (1)用弹簧测力计测出铝板的重力 G;
A spring dynamometer is a tool for measuring force. If we subtly use the quantity transformation relationship between physical quantities, we can find some other applications for it, so as to solve some practical problems more so as to cultivate students’ divergent thinking. The purpose of the ability and knowledge transfer ability. 1. Spring dynamometer “measure ” the thickness of the object Example 1 There is a rectangular parallelepiped aluminum plate, length, width were a, b, the thickness of the test spring dynamometer h. Please write down the method steps of the measurement. Step (1) measure the gravity G of the aluminum plate with a spring dynamometer;