在物理教学中,一些常见题目往往有大家公认的标准答案,但这些标准答案中也不乏错误.由于我们没有细致推敲就接受了标准答案的说法,并在讲解练习题和批改作业时,甚至是在中考阅卷时,都用这个“标准答案”来指导我们的行动,因此,错误的“标准答 In physics teaching, some common questions often have standard answers that are accepted by everyone, but there are some mistakes in these standard answers. Because we accepted the standard answer without careful elaboration, and even when explaining exercises and criticizing assignments, In the exam marking volume, use this ”standard answer “ to guide our actions, therefore, the wrong ”standard answer