所谓物理模型,就是把那些复杂的事物和运动形式作物理的概括和抽象,在突出其主要因素而忽略次要因素后所建立的理想对象或理想过程等.物理模型遍及物理学各个部分,对象类物理模型,如质点、光滑斜面、轻质杆(绳、弹 The so-called physical model is the physical summary and abstraction of those complex things and forms of motion, the ideal objects or ideal processes established after highlighting its major factors and ignoring minor factors. The physical model covers all parts of physics, objects Physical models such as particles, smooth bevels, lightweight rods (ropes, bullets)