复合场指电场、磁场、重力场同时存在或其中两种同时存在的情况.带电物体在复合场中的运动问题涉及知识点多、综合性强、灵活性大.其构思新颖、综合性强,突出考查考生对物理过程和运动规律的综合分析能力、运用数学知识解决物理问题的能力及空间想象能力.解答问题关键是构建抽象物理模型,在对问题进行模型化处理时,常常通过联想复合场中现代技术模型来创造新模 The composite field refers to the situation that electric field, magnetic field and gravitational field exist simultaneously or two of them exist simultaneously.The motions of the charged objects in the complex field involve more knowledge, more comprehensiveness and more flexibility.It has the advantages of novel idea, comprehensiveness, Highlighting the candidates examine the physical process and the law of the comprehensive analysis of the ability to use mathematical knowledge to solve the problem of physical ability and spatial imagination ability to solve the problem is the key to building an abstract physical model in the modeling of the problem, In the modern technology model to create a new model