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1.平衡法平衡,实质上是矛盾双方的乎衡,是对立倾向平衡,分析平衡就是分析矛盾的双方.在一个平衡系统中总存在偏离平衡的因素,平衡就是这种偏离平衡因素的抵消效应.例如:①应用等臂天平测质量,实质就是欲测质量的物体与砝码这两个使天平失去平衡的因素的相互抵消,重新使天平达到力矩平衡的过程,从而可知物体的质量等于砝码的重量.②用弹簧秤测力时是根据二力平衡的原理,外
1. The balance of balance method is essentially the balance between the two sides of the contradiction. It is the balance of opposites. The analysis of balance is the analysis of both sides of the contradiction. In a balanced system, there are always factors that deviate from balance. The balance is the offset effect of this deviation from the balance factor. For example: 1 The use of an equal-arm balance to measure mass, in essence, the mass of the object to be measured and the weight, which cancels the balance of the balance of the balance of the factors, re-balance the process to achieve the balance of the moment, thus we can see that the mass of the object is equal to The weight of the code .2 is measured according to the principle of two-force balance when force is measured with a spring balance.