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在求解物理问题时,首要的一环是研究对象的选取。研究对象选得好、选得巧,求解过程可以化繁为简、化难为易、事半功倍;研究对象选得不好,求解过程将变得非常繁难复杂;研究对象如果选错,“有解”之题还会变成“无解”之题。可以说,正确合理选取研究对象是求解物理问题成败的关键。那么,研究对象的选取应注意些什么呢?
When solving physical problems, the first priority is the selection of research objects. The study objects are selected well and selected well. The solution process can be simplified, simplified, and made much more effective; if the study object is not well selected, the solution process will become very complicated and complicated; if the research object is selected wrong, “there are solutions”. The question will also become “no solution”. It can be said that the correct and reasonable selection of research objects is the key to solving the success or failure of physical problems. Then, what should we pay attention to when selecting research objects?