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初中物理有个重要的电学实验就是“利用伏安法测电阻”.这个实验既定性又定量,对于培养学生的实验、观察、操作、数据处理及注意事项等能力的提高有至关重要的作用,对于学生逐步养成实事求是的科学态度和积极探索的科学精神有重要的指导意义.它既是操作技能的训练,又是数字化处理的具体体现.为使学生全面、系统掌握电学实验的基本要素,现对本实验中所包含的逐项内容总结出“一二三四五六七八”.
An important electrical experiment in junior high school physics is “using voltammetry to measure resistance.” This experiment is both qualitative and quantitative, and it plays a crucial role in improving the ability of students in experiments, observations, operations, data processing, and matters needing attention. For students to gradually develop the scientific attitude of seeking truth from facts and the scientific spirit of active exploration has important guiding significance. It is both a training of operational skills and a concrete embodiment of digital processing. In order to enable students to fully and systematically grasp the basic elements of electrical experiments, The “one, three four-four five-seven-seven-eight” is summarized for each item contained in this experiment.