物理运算过程是带单位运算的过程,因此,我们可以通过对某些物理量单位的检验,可以判断计算结果或计算过程中采用的公式是否正确.同样,我们可以通过各种形式的探究,定性的找出各物理量之间的关系,再运用各等式的物理量的单位必须一致的特点,就可以找出物理公式. The physical computing process is a unit of computing process, so we can test some of the units of the physical quantity, you can determine the calculation results or calculations used in the formula is correct. Similarly, we can through various forms of inquiry, qualitative Find out the relationship between the physical quantities, and then use the equation of the physical quantity units must be consistent with the characteristics, you can find out the physical formula.