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一、常见题目特点与解答方法1.用控制变量法分析实验数据.试题用表格形式提供数据,要求学生根据提供的数据,归纳出结论时,要先分清表格内各项数据所表示的含义,再分析表格内的数据,纵横比较,找出各数据间的关系,归纳总结出结论.解答时一般运用控制变量处理,解题的关键是善于观察、比较题目所给现象、数据,重点分析哪些条件相同,哪些条件不同,哪些物理量发生了变化,纵横比较,找出各数据间的相同点或不同之处,挖掘出反映其本质的
First, the common features and answers to the questions 1. Analysis of experimental data using control variables. Test questions with the form of data to provide, according to the data provided by the students, summarized the conclusions, we must first distinguish the meaning of the data in the form, Analysis of the data in the table, the vertical and horizontal comparison to find out the relationship between the data, and concluded that the solution to the general use of control variables, the key to solving problems is good at observation, comparing the phenomenon of the subject, the data, focusing on what analysis Conditions are the same, what conditions are different, what physical changes have taken place, the vertical and horizontal comparison to find the same or different between the various data, dig out to reflect its essence