1.单选题- (共6题)
| A．三个液滴在真空盒中都做平抛运动 |
| B．三个液滴的运动时间不一定相同 |
| C．三个液滴落到底板时的速率相同 |
| D．液滴C所带电荷量最多 |
| A．FA是电荷A产生的电场施加的 |
| B．FA是电荷B产生的电场施加的 |
| C．FB是电荷B产生的电场施加的 |
| D．FB是电荷＋Q产生的电场施加的 |
| A．增大为原来的 2 倍 |
| B．增大为原来的 4 倍 |
| C．减小为原来的一半 |
| D．改变为零 |
| A．质子在D形盒中做匀速圆周运动的周期为2T |
B．质子被加速后的最大速度可能超过 |
| C．质子被加速后的最大速度与加速电场的电压大小无关 |
| D．不改变B和T，该回旋加速器也能用于加速α粒子（质量数为4，核电荷数为2） |
| A．磁铁左右摆动一次，线圈内感应电流的方向改变两次 |
| B．磁铁始终受到感应电流的磁场的斥力作用 |
| C．磁铁所受到的感应电流对它的作用力始终是阻力 |
| D．磁铁所受到的感应电流对它的作用力有时是阻力，有时是动力 |
，R2＝30，C为电容器。已知通过R1的正弦交流电如图乙所示，则（）
| A．交流电的频率为0.02 Hz |
B．原线圈输入电压的最大值为200 V |
| C．电阻R2的电功率约为6.67 W |
| D．通过R3的电流始终为零 |
2.选择题- (共5题)
阅读表达,阅读下面短文，根据短文后的要求答题。
The Clean Your Plate Campaign was set up by nongovernmental organizations, which urged people to save food by not wasting anything on the dining table and finish all the food on the plate. The campaign, launched on weibo, was soon joined by millions of netizens across China in order to control food wastage.
A study show that the grain that people waste every year in China is about 50 million tons , enough to feed about 200 million people for one year.
Nearly 750 restaurants in Beijing have joined the Clean Your Plate campaign against wasting food by offering smaller dishes, half dishes and assorting dishes to reduce waste, and encourage customers to take leftovers home.
Now (1) (share) the empty dishes after dinner is popular with many youngers, and they are proud of it.
⑵ Our government is trying its best to put an end to food wastage, and is taking the lead to save food.
阅读表达,阅读下面短文，根据短文后的要求答题。
The Clean Your Plate Campaign was set up by nongovernmental organizations, which urged people to save food by not wasting anything on the dining table and finish all the food on the plate. The campaign, launched on weibo, was soon joined by millions of netizens across China in order to control food wastage.
A study show that the grain that people waste every year in China is about 50 million tons , enough to feed about 200 million people for one year.
Nearly 750 restaurants in Beijing have joined the Clean Your Plate campaign against wasting food by offering smaller dishes, half dishes and assorting dishes to reduce waste, and encourage customers to take leftovers home.
Now (1) (share) the empty dishes after dinner is popular with many youngers, and they are proud of it.
⑵ Our government is trying its best to put an end to food wastage, and is taking the lead to save food.
3.多选题- (共2题)
| A．A、B两点在同一水平线上 |
| B．A点高于B点 |
| C．A点低于B点 |
| D．铜环最终在磁场中来回不停的摆动 |
，竖直分量
，海水向北流动
海洋工作者测量海水的流速时，将两极板竖直插入此处海水中，保持两极板正对且垂线沿东西方向，两极板相距
，如图所示与两极板相连的电压表
可看作理想电压表
示数为
，则 
| A．西侧极板电势高，东侧极板电势低 |
| B．西侧极板电势低，东侧极板电势高 |
C．海水的流速大小为 |
D．海水的流速大小为 |
4.解答题- (共2题)
的a点，平行于x轴射入磁感应强度大小为B、方向垂直纸面向外的圆形匀强磁场区域，并从x轴上b点射出磁场，射出速度方向与x轴正方向夹角为
，如图
求：
带电粒子在磁场中运动的轨道半径；
带电粒子的比荷
及粒子从a点运动到b点的时间；
其他条件不变，要使该粒子恰从O点射出磁场，求粒子入射速度大小．
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【1】题量占比
单选题:(6道)
选择题:(5道)
多选题:(2道)
解答题:(2道)
-
【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：0
5星难题：0
6星难题：5
7星难题：0
8星难题：4
9星难题：1