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定量方法是解答物理习题的常用方法,但并非在所有场合下繁复的计算都是必要的.对有些物理问题,若能充分利用题给信息,根据掌握的物理知识和规律进行定性的分析和推理,便可简捷地作出判断.加强对学生进行定性分析方法的训练和指导,对于开发学生智力,培养学生灵活、科学的思维方法及分析、综合能力都是十分有益的,1998年的物理高考试题也体现出对学生定性分析能力的考查.下面结合对几道高考题的速解谈谈定性分析在解题中的运用.
Quantitative methods are common methods for solving physical exercises, but not complicated calculations are necessary in all occasions. For some physical problems, if you can make full use of the questions for information, qualitative analysis and reasoning based on the mastery of physical knowledge and laws , can make a simple and easy judgment. To strengthen the training and guidance of students in qualitative analysis methods, for the development of student intelligence, to develop students with a flexible, scientific thinking methods and analysis, comprehensive ability is very useful, the 1998 physics examination questions It also reflects the qualitative analysis of students’ ability to examine. The following combination of several college entrance examination questions to discuss the use of qualitative analysis in solving problems.