论文部分内容阅读
高一物理必修2中第五章第二节介绍了《平抛运动》要求学生从牛顿运动定律的观点以及运动的合成与分解思想出发,从一维情景转向二维情景,使认识上不断发展,层层深入.再相应地做实验,有的放矢.本课程的实验设计要解决两个问题:一是研究平抛运动在竖直方向的运动规律二是研究平抛运动在水平方向的运动规律.一、知识梳理1.定义.物体以一定的初速度沿水平方向抛出,如果物体仅受重力作用,这样的运动叫做平抛运动.平抛运动可看作水平方向的匀速直线运动以及竖直方向的自由落体运动的合运动.平抛运动的物体,由于所受的合外力为恒力,所以平抛运
In Chapter 2 of Chapter 5 of High School Physics Compulsory 2, Chapter Two introduces the “Flat-throwing Movement”, which requires students to start from the viewpoint of Newton’s law of motion and the idea of synthesis and decomposition of movement, to shift from one-dimensional situations to two- , And then in-depth experiments, and then targeted experiments.The experimental design of the course to solve two problems: First, the study of flat throwing motion in the vertical direction of the second is the study of flat throwing motion in the horizontal direction of the law. First, the knowledge of combing 1. Definition. Objects at a certain initial velocity thrown along the horizontal direction, if the object is only subject to gravity, this movement is called throwing movement. Ping throwing movement can be seen as a horizontal direction of uniform linear motion and vertical The direction of the free-fall movement combined movement.Platter throwing movement of the object, due to the combined force of constant force, so flat throwing