摩擦是日常生活中经常遇到的现象,人们的很多活动都离不开摩擦．比如,端起脸盆或用手握住什么物体,要靠手与物体间的摩擦,走路也靠摩擦,行驶的汽车停下来还要靠摩擦等等．摩擦现象处处存在,下面结合实例谈谈对摩擦力的认识． Friction is a phenomenon often encountered in daily life, and many people’s activities are inseparable from friction. For example, when you lift a basin or hold something in your hand, you must rely on the friction between your hand and the object, and you must also rely on friction when you walk. Friction phenomenon exists everywhere, the following combination of examples to discuss the understanding of friction.