CAJ | 학술논문

以一道高考物理试题为原型,建立了带电粒子在复合场中运动的参数方程,讨论了不同初始条件对带电粒子运动轨迹形状的影响。为了使带电粒子的运动过程更加直观,使用《几何画板》软件描绘了各种典型情况下的运动摆线,并用物理方法导出了摆线曲率半径的普遍公式。
이일도고고물리시제위원형,건립료대전입자재복합장중운동적삼수방정,토론료불동초시조건대대전입자운동궤적형상적영향。위료사대전입자적운동과정경가직관,사용《궤하화판》연건묘회료각충전형정황하적운동파선,병용물리방법도출료파선곡솔반경적보편공식。
Modeled on a physical question in the college entrance examination, this paper establishes the parametric equations of a charged particle moving in the compound fields, and discusses varied effects that different initial conditions bring on the ap- pearance of the charged particle＇s the motion trajectories. In order to clarify the motion of the charged particle, we also depict the motion cycloids of the charged particle under various typical cases using the geometerg sketchpad, and adopt a physical method to derive the general formula for radius of curvature of the cycloid.