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轻绳、轻杆、轻弹簧作为中学物理常见的理想模型,在中学物理习题中经常出现,这三个模型既有相同的特征又有各自的特点,由于不同模型呈现的物理情景不同,因而具有不同的性质和规律.在实际问题中总是与其他物体直接或间接联系在一起,并与“关联物”之间总存在着力、运动状态、动量或机械能方面的联系.此类问题在高中物理中占有
As a common ideal model of middle school physics, light rope, light pole and light spring often appear in middle school physics exercises. The three models have the same characteristics and their own characteristics. Because different models present different physical situations, Different nature and laws.In practical problems, it is always associated directly or indirectly with other objects, and there is always a link between force, state of motion, momentum or mechanical energy between High school physics possession