关于物体系的内力和外力的关系

ON THE RELATION OF INTERNAL FORCE AND EXTERNAL FORCE IN OBJECT PHYSICS DEPARTMENT NUERLA

物体受力分析是物理教学中的重点,也是难点,是整个力学的基础之一,掌握分析受力方法的本身就是培养学生分析综合能力和提高思维能力的过程。本文对物体系进行正确地受力分析,对物体系内力和外力浅谈自己的认识。

The analysis of force acting on the bodies is the difficult but important point in physics teaching. It is one of the mechanic bases. The students can be improved in ability of analysing and thought by mastering the method of analysing the force acting on the abject. This paper discusses the force acting on the object systems and gives a view on the relation of internal force ard external force.