论文部分内容阅读
现行高级中学课本物理(甲种本)第一册279页,在谈到回复力是产生振动的第一个必要条件时强调指出:“应该注意,回复力是根据力的效果命名的,它可能是弹力,可能是重力,还可能是它们的合力或分力。”笔者认为这段话说法欠妥,至少是不全面的。第一,因为回复力灼来源可以超出上述弹力,重力的范围。笔者在多年的教学过程中,曾多次遇到学生提出的有关问题,如高一学生曾问起:“摩擦力不能充当回复力吗?”高三学生曾在复习过程中提出过:“电磁力能否提供回复力?”“分子的振动
In the first book of the current high school textbook physics (A kind) book, on page 279, when talking about restoring force is the first necessary condition for generating vibration, it should be noted: “It should be noted that the restoring force is named after the effect of force. It may It’s elasticity, it may be gravity, it may be their combined force or force.” The author thinks that this passage is not good or at least incomplete. First, because the source of repulsive force can exceed the above-mentioned elastic force, the range of gravity. In the course of many years of teaching, the author has encountered many problems raised by students. For example, a high school student once asked, “Is friction not able to act as a restoring force?” Senior high school students put forward during the review process: “Electromagnetic force Can we provide the restoring force?“ ”Molecule vibration