论文部分内容阅读
新编高级中学物理课本(上、下册,1987年4月第2版)经使用后,深深感到比原来的甲、乙种本有明显的优越之处,即紧扣大纲,将超纲的内容和习题用小字印出并标注“*”号,这样做便于教师的教与学生的学,有利于统一教学要求。但在使用过程中,还感到有几处概念和单位不够准确,特提出商榷.一、几个概念的商榷1.关于匀速直线运动和匀变速直线运动的定义。课本上册 p.49和 p.54分别给出这两个定义,它们为:“物体在一条直线上运动,如果在相等的时间里位移相等,这种运动就叫做匀速直线运动。”“物体在一条直线上运动,如果在相等的时间内速度的变化相等,这种运动就叫做匀变速直线运动。”在这两个定义中,对相
The new high school physics textbooks (first and second volumes, second edition in April 1987) were deeply felt after the use of the original A and B species. The content and exercises are printed in small print and marked with a “*” sign. This facilitates teachers’ teaching and student learning, and is conducive to uniform teaching requirements. However, in the process of use, I still feel that there are several concepts and units that are not accurate enough, and I would like to discuss the details of the concepts and units. 1. Definitions of uniform linear motion and uniform linear motion. Textbooks p.49 and p.54 give these two definitions. They are: “The objects move in a straight line. If the displacements are equal in equal time, the motion is called uniform linear motion.” “The objects move in a straight line. If the velocity changes in equal time, the motion is called uniform linear motion.” In these two definitions, the phase