物理估算题 ,在近几年的高考试题中频频出现 .由于其具有文字简洁、显性条件少 ,待求量与已知量之间的关系隐蔽等特点 ,往往使答题者感到束手无策 ,失分率很高 .本文通过一些例题的分析和解答 ,归纳一下解答估算题的方法要点 ,以帮助考生提高分析和求解的能力 .1　建立理想模型 Physical estimation problems have appeared frequently in high-achieving questions in recent years. Because they have the characteristics of concise words, few explicit conditions, and the hidden relationship between the quantity to be found and the known quantity, they often make the respondent feel helpless and lose points. The rate is very high. This article analyzes and answers some sample questions and summarizes the main points of the method to solve the estimation questions to help the examinee to improve the ability to analyze and solve.1 Establish an ideal model