2015年高考物理试卷(新课标Ⅰ)(解析卷)
2015年全国统一高考物理试卷(新课标Ⅰ)参考答案与试题解析 一、选择题(本题共8小题,每小题6分,在每小题给出的四个选项中,第1-5题只有一项符合题目要求。第6-8题有多项符合题目要求。全部选对的得6分,选对但不全的得3分,有选错的得0分)1.(6分)两相邻匀强磁场区域的磁感应强度大小不同、方向平行。一速度方向与磁感应强度方向垂直的带电粒子(不计重力),从较强磁场区域进入到较弱磁场区域后粒子的( )A.轨道半径增大,角速度增大B.轨道半径增大,角速度减小C.轨道半径减小,速度增大D.轨道半径减小,速度不变【考点】CI:带电粒子在匀强磁场中的运动.菁优网版权所有【专题】34:比较思想;43:...
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