论文部分内容阅读
“传送带”问题在现代生产应用中非常广泛,以传送带为情景的物理问题,能够非常方便的与牛顿力学的规律相结合,是一个很好的高考命题的平台,因此与传送带相关的物理问题在高考命题中经常出现,这类问题能够较方便的考察学生利用物理规律分析问题和解决问题的能力,受到广大师生的重视.一、难点形成的原因及分析难点1:对于物体与传送带之间是否存在摩擦力、是滑动摩擦力还是静摩擦力、摩擦力的方向如何,等等,这些关于摩擦力
“Conveyor ” problem is very extensive in modern production and application. The physical problem of conveyor belt is a very convenient condition of college entrance examination which can be very conveniently combined with the laws of Newtonian mechanics. Therefore, Problems often appear in the college entrance examination proposition, such problems can more easily examine the students using the laws of physics analysis and problem solving skills, by the majority of teachers and students of attention., First, the difficulty of the formation of the reasons and analysis Difficulties 1: for objects and conveyors Whether there is friction between the sliding friction or static friction, the direction of the friction, and so on, these on the friction