义务教育《物理课程标准》中关于摩擦力的要求是这样描述的:“通过常见事例或实验,了解重力、弹力和摩擦力。”而“了解”这个行为动词说明初中阶段对“摩擦力”的教学要求并不高。在初中阶段,学生只需了解摩擦力与“接触面所受的压力”和“接触面的粗糙程度”有关。教师在举例说明时,往往不外乎 The requirements for friction in the compulsory education “Physical Curriculum Standard” are described as follows: “Through common examples or experiments, we know the gravity, elasticity and friction.” “And” understanding “ ”Friction “ teaching requirements are not high. At the junior secondary level, students only need to know that the friction is related to the ”pressure on the contact surface“ and the ”roughness of the contact surface". When teachers give an example, they often do nothing more