摘要
建立了带电粒子在电场和磁场中运动的参数方程，借助“几何画板”5．00制作了带电粒子运动的摆线动画，讨论了初速度对带电粒子运动轨迹形状的影响，指出了2011年高考福建理综物理压轴题的瑕疵．
Establishment of parametric equations for charged particles moving in an orthogonal electric and magnetic fields as well as the animation of cycloid cartoons with the geometer＇s sketchpad 5.00 for charged particles moving in the electric and magnetic fields,we discuss varied effects that different initial velocities bring on the appearance of the charged particle＇s the motion trajectories,and point out the defect of a physical question in 2011 Fujian＇s college entrance examination paper.
出处
《物理通报》
2013年第1期86-90,共5页
Physics Bulletin
关键词
高考试题
摆线动画
几何画板
参数方程
a question from the college entrance examination paper
cycloid cartoon
geometer＇s sketchpad
parametric equation
