在中学物理教学中,经常会碰到分析台秤示数变化的问题,对于高一、高二的学生来说这类问题可以说是让人伤透了脑筋,不知从何下手,即使对于高三的学生来讲,也会在形态各异的题型变化中疲于应付,而无暇去研究其本质,从而导致学生屡做屡错。 In the middle school physics teaching, we often encounter the problem of analyzing the change of scales. For high school and high school students, this type of problem can be said to be a headache. I don’t know where to start, even for high school students. In other words, it will also be able to cope with changes in the shape of different types of questions, and no time to study its nature, resulting in repeated mistakes made by students.