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在讲解人民教育出版社高中物理选修3-1第二章“恒定电流”时,发现课本中第二节和第七节对电源内部的电场讲解互相矛盾,容易引起对电源理解的混乱,下面说说自己的看法:1.第二节《电动势》是新教材新增加的一节,教材把电源类比成抽水机;把抽水机在抽水的过程中克服重力做功类比成电源内部“非静电力”克服“静电力”做功;把抽水机抽水所增加的水的重力势能类比成电源内部的“非静电力”做功所增加的电势能。新教材强调了
Explain People’s Education Press senior high school physics elective 3-1 second chapter “constant current ”, found textbooks in sections two and seven on the electric field inside the power to explain contradictory, easily lead to the confusion of power understanding, Here to talk about their own views: 1. The second section “electromotive force” is a new section of the new textbook, textbook analog power into a pump; the pump in the process of pumping water to overcome the gravity analogy into the power inside “non-static electricity ”Overcoming “ electrostatic force ”work; analogy the gravity potential of water added by the pumping machine analogy into the potential energy increased by the“ non-static electricity ”of the power source. The new textbook emphasizes