论文部分内容阅读
牵引力一词在中学、中专物理教学中常常提到,是指汽车、机车等本身向前的动力.课本中多次提到牵引力使汽车产生的加速度;牵引力对汽车所做的功等问题.一些参考书在解释牵引力时总把它说成是摩擦力;或模糊地使人容易理解为牵引力就是摩擦力(如中学物理甲种本25页:“汽车的发动机驱动后轮转动,由于轮胎和地面间有摩擦……牵引力就是这样产生的.”).
The word traction is often referred to in physics teaching in middle schools and secondary schools. It refers to the forward momentum of cars, locomotives, etc. The textbook repeatedly mentions the traction that causes the acceleration of the car, and the traction that the car does. Some reference books always describe it as friction when interpreting traction; or vaguely make people understand that traction is friction. (For example, in the middle of the physics of a species, this page 25: “The car’s engine drives the rear wheels to turn because of tires and There is friction between the ground ... Traction is produced like this.”).