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密度的测量是中学物理的难点,也是重点,常规的测量方法是借助于密度的定义式ρ=m/V来测量的,除此还有一些特殊的测量方法,例举如下: 一、比较法(适用于液体) (1)质量比较法.把被测液体与已知密度
The measurement of density is a difficult and important point in the physics of middle schools. The conventional measurement method is measured by the definition formula of density ρ=m/V. In addition to this, there are some special measurement methods. Examples are as follows: 1. Comparison method (Applicable to liquids) (1) Mass comparison method. The liquid to be measured and the known density