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在公式Q=cm△t中同时要涉及三个物理变量,是初中物理中所含物理量最多的一公式,对学生来说难度较大,在语言表达上也有一定困难.如何利用公式做定性分析,下面通过例题加以说明.
In the formula Q=cm△t, three physical variables are involved at the same time. It is a formula with the largest physical quantity in junior middle school physics. It is more difficult for students and has certain difficulties in language expression. How to use formulas to make qualitative analysis , The following examples illustrate.