论文部分内容阅读
1990年全国普通高等学校招生统一考试物理试题24是这样的:用伏安法测电阻的实验中,按实验要求选用的电压表的最小分度为0.1伏,电流表的最小分度为0.02安。某学生记录的各组数据如下表所示:在这五组数据中,有效数字位数不符合要求的是第_组,数据有差错的是第_组。命题组给出的标准答案是①1,3,②4。笔者认为这道题设计欠妥,在此提出和命题组老师商榷。这道高考题第1问考查的是按有效数字
In 1990, the physics examination for the National College Entrance Examination for Unified Colleges 24 was as follows: In the experiment of measuring the resistance by voltammetry, the minimum voltage of the voltmeter used in the experiment was 0.1 volt, and the minimum of the ammeter was 0.02 amp. The data of each student record group is shown in the following table: In these five groups of data, the number of valid digits does not meet the requirements is the first group, and the data error is the first group. The standard answer given by the proposition group is 11,3,24. The author believes that the design of this question is not proper. Here, I would like to discuss it with the teacher of the proposition group. The first question of this college entrance examination question is based on valid figures.