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物理估算,是指依据一定的物理概念和规律,对所求物理量的数值和数量级大致推算的一种近似方法.近几年,估算题在高考中频频出现,它题型新颖,条件隐蔽,文字简洁,应用性强,使许多考生感到束手无策.为了帮助同学们走出这一困境,本文对估算题解法进行归类评析.
Physical estimation refers to an approximate method for calculating the numerical value and magnitude of the physical quantity to be obtained according to certain physical concepts and laws. In recent years, the estimation problem has appeared frequently in the college entrance examination. It is novel in terms of type, concealed conditions, and text. Because of its simplicity and applicability, many candidates feel helpless. In order to help the students get out of this predicament, this paper classifies and evaluate the method of estimating the problem.