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在众多的带电粒子在电磁场中的运动的试题中,有这样一类题目,当题中给定不同条件时,带电粒子将会出现不同的运动情况,这类题目在历年高考中能反应学生的思维层次,很好的区分学生的解题能力.现以此题为例,引导学生探索解此类题的思维规律,以促进训练创造性思维.如图1所示,在直角坐标系 xOy 内,有一质量为 m,带电量为+q 的质点从原点 O 沿 y
In many questions on the motion of charged particles in an electromagnetic field, there are such problems. When given different conditions in the subject, charged particles will appear in different movements. Such topics can reflect the students in the college entrance examination over the years. The level of thinking is very good to distinguish students’ problem-solving abilities. Now, taking this topic as an example, students will be guided to explore the thinking patterns of solving such problems and promote the training of creative thinking. As shown in Figure 1, within the Cartesian coordinate system xOy, There is a particle with a mass of m and a charge of +q from the origin O along the y