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在中专物理课程中,同学们对学习“电源电动势”这个概念感到比较困难,其原因在于:第一,电源内部所发生的物理及化学过程比较抽象难懂,第二,与电源有关的各物理量之间的关系及各物理量之间的区别比较复杂且容易混淆。因此在应用这部分内容解决具体问题时往往错误比较多。这些错误多属于基本概念不清这类性质的问题,在教学中如何突破这个难点,本文进行了分析。
In the secondary physics course, students feel more difficult to learn the concept of “power electromotive force”. The reason is that firstly, the physical and chemical processes that occur inside the power supply are rather abstract and difficult to understand. Secondly, the power supply The relationship between the various physical quantities and the difference between the physical quantities is more complicated and easy to be confused. Therefore, the application of this part of the content to solve specific problems are often more mistakes. These errors belong to the nature of the basic concepts are unclear, how to break through this difficult teaching, this article is analyzed.