论平均物理量的正确使用

On the Correct Use of Average Physical Quantity

求均物理量,是物理学中处理非均匀变化的物理现象的常用方法。但物理现象不同,平均物理量的意义和特点不同,运用不当很容易出现错误。处理相关问题时,必须明确对什么求平均,在什么区间内求平均,怎样求平均,从而有效防止错误求平均现象的发生,达到准确理解平均的物理意义,正确使用平均物理量的目的。

The average physical quantity is the usual method of dealing with the non-homogeneous physical phenomena in Physics. However, the physical phenomena are various and the meanings and characteristics of average physical quantity are different.it is easy to make mistakes if it is used inappropriately. When we are dealing with related problems, we should make it clear how to average effectively so that we can appropriately understand the physical sense of averaging and correctly use the average physical quantity.