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估算题,在高考试题中已出现六次,在全国中学生物理竞赛与初中应用物理知识竞赛中也多次出现,统编教材中也有。这有利于解题者重视估算的训练,提高应用物理知识分析判断问题的实际能力。物理估算题,包括估测题、估判题,通常主要是对数量级或数值范围进行估算。解答估算题,一般是做大致的推算,精确度要求不高,但同样要具有科学性。等效处理、近似计算应当合理、可信,切不可无依据地胡猜乱算。就解题方法和步骤而言,估
The estimation question has appeared six times in the high test questions, and has appeared many times in the national middle school students physics contest and junior high school applied physics knowledge contest. This helps the problem solver to emphasize the training of estimation and improve the practical ability of analyzing and judging problems with applied physical knowledge. Physical estimation questions, including estimation questions and estimation questions, are usually estimated mainly on the order of magnitude or value range. The answer to an estimate question is generally a rough estimate, and the accuracy is not high, but it must also be scientific. Equivalent processing and approximate calculation should be reasonable and credible, and must not be scrupulously calculated. As far as problem solving methods and procedures are concerned, estimates