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带电粒子在电场和磁场的组合场中的运动,是高考的热点问题,分析历年物理高考题可知,这类题目出现的频率高,分数权重大,考察学生对物理主干知识综合应用的能力,多以压轴题出现,是拉开考生分距的题目。这类题有何特点?求解有何规律?先看2008年全国高考理综卷(Ⅰ)第25题。
The movement of charged particles in the combined field of electric field and magnetic field is a hot issue in the college entrance examination. Analyzing the physical college entrance examination questions over the years, we can see that the frequency of such questions is high, the scores are heavy, and students’ abilities to comprehensively apply the knowledge of the physical backbone are many To pressure axis problem appears, is to open the subject of the candidates apart. What are the characteristics of such questions? Solving any rules? Look at the 2008 National College Entrance Examination (Ⅰ) Question 25.