高考涉及磁场力的试题常包含重力、电场力的共同作用,其中以考查洛伦兹力为主.涉及带电粒子在磁场中运动的试题常涉及速率、动量、动能、半径、周期、向心加速度、向心力等重要的力学概念,其中带电粒子在有边界和无边界磁场区域中的运动及其规律、带电粒子在复合场中的运动及其规律是本专题内容 The examination questions involving magnetic field force in the college entrance examination often include the joint action of gravity and electric field force, among which the Lorentz force is mainly examined. Questions concerning the motion of charged particles in a magnetic field often involve velocity, momentum, kinetic energy, radius, period, centripetal acceleration , centripetal force, and other important mechanical concepts, in which the motion and law of charged particles in bounded and unbounded magnetic regions, the motion of charged particles in the composite field, and their laws are the contents of this topic.