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人们在编制物理习题时,对习题的知识性、技巧性等方面比较重视,而对某些较隐蔽的科学性问题却往往有所忽视,以致造成一些病题流行于世,现举例分析如下。 1 条件不完备。习题的条件只有完备无隙,答题者才能得到正确的结果。否则,答题者在解题中就可能会各自加以理解,或者无从下手,无法得到正确结果。例1.某学生在测灯泡的内阻时,错把安培表与伏特表的位置相交换,如图1,这将造成: A.安培表烧坏. B.灯泡不亮. C.伏特表烧坏. D.灯泡烧坏. 分析:该题目的编者给出的答案是C.其实这道题
When people compile physics exercises, they pay more attention to the knowledge and skill of the exercises. They often neglect some of the more hidden scientific issues, causing some diseases to become popular in the world. 1 The conditions are incomplete. The conditions for the exercises are only complete and there are no gaps. The respondent can get correct results. Otherwise, the respondents may understand each other in the problem solving, or they may not be able to get the correct result. Example 1. When a student measures the internal resistance of a light bulb, he mistakenly swaps the position of the ammeter and the voltmeter, as shown in Figure 1. This causes: A. The ammeter burns out. B. The light bulb does not shine. C. Voltmeter Burnout. D. Lightbulb burnout. Analysis: The answer given by the editor of this topic is C. Actually this question