摘要
对于"理论力学"课程中平面转动参考系的相关内容进行了教学改革探索.针对教材中缺少速度推导过程这一问题,提出补充推导的建议.同时,针对平面转动参考系中的运动质点,其位置矢量对时间的一阶导数是相对速度还是绝对速度这一教学难点问题,通过改进教材的插图和坐标符号,找到了解决方法,有助于消除学生的困惑和误解.
The teaching reform of the plane rotation reference in Theoretical Mechanics is discussed in this paper. It is proposed that derivation process on velocity be supplemented during teaching because it is omitted in the book. The teaching difficulty whether first order derivation of its position vector is relative velocity or absolute velocity referring to the material point in plane Rotation Reference has been solved by replacing the illustrations and coordinate symbols in the textbook, which can eliminate students＇ confusion and misunderstanding.
作者
孔德清
KONG Deqing(College of Electronic Information and Mechatronic Engineering, Zhaoqing University, Zhaoqing, Guangdong 526061, China)
出处
《肇庆学院学报》
2016年第5期24-27,共4页
Journal of Zhaoqing University
关键词
参考系
位置矢量
速度
加速度
reference system
position vector
velocity
accelerated velocity
