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可视为质点、初速度为零的无约束带电小球在由重力场、匀强磁场或匀强电场等组成的复合场的运动中,因重力或电场力做功,导致带电小球速度的变化,从而引起带电小球所受洛伦兹力的变化,进而使带电小球的运动轨迹和运动状态发生改变,这不仅有别于不计重力的带电粒子在复合场中的运动,也不同于带电小球在复合场中的平抛运动。无约束带电小球在复合场中的运动是高中物理教学的
Can be regarded as the particle, the initial velocity of zero unconstrained charged ball in the gravitational field, uniform magnetic field or uniform electric field composed of composite field movement, due to gravity or electric field work, resulting in changes in charged ball velocity , Which causes the Lorentz force to be affected by the charged pellet, which in turn changes the trajectory and the moving state of the charged pellet. This is not only different from the movement of charged particles in the recombination field but also different from charged Ball in the composite field of flat throwing movement. Unconstrained live ball in the compound field movement is high school physics teaching