1.单选题- (共5题)
1.
如下图所示，甲、乙两带电小球的质量为m，所带电量分别为+q和一q，两球间用绝缘细线连接，甲球又用绝缘细线悬挂在天花板上，在两球所在空间有方向向右的匀强电场，电场强度为E，平衡时细线被拉紧。则当两小球均处于平衡时的可能位置是（）
2.
如图所示在绝缘的水平面上等间距固定着三根相互平行的通电直导线a、b和c ，各导线中的电流大小相同。其中a、c导线中的电流方向垂直纸面向外，b导线电流方向垂直纸面向内。每根导线受到另外两根导线对它的安培力作用，则关于每根导线所受安培力的合力，以下说法中正确的是（）
| A．导线a所受合力方向水平向右 |
| B．导线c所受合力方向水平向右 |
| C．导线c所受合力方向水平向左 |
| D．导线b所受合力方向水平向左 |
3.
如图所示，固定容器及可动活塞P都是绝热的，中间有一导热的固定隔板B,B的两边分别盛有气体甲和乙。现将活塞P缓慢地向B移动一段距离，已知气体的温度随其内能的增加而升高，则在移动P的过程中
| A．外力对乙做功；甲的内能不变 |
| B．外力对乙做功；乙的内能不变 |
| C．乙传递热量给甲；乙的内能增加 |
| D．乙的内能增加；甲的内能不变 |
4.
分子间的引力、斥力都与分子间距离有关，下列说法中正确的是
①.无论分子间的距离怎样变化，分子间的引力、斥力总是相等的
②.无论分子间的距离怎样变化，分子间的斥力总小于引力
③.当分子处于平衡位置时，分子间的斥力和引力的大小相等
④.当分子间距离增大时，分子间的斥力比引力减小得快
①.无论分子间的距离怎样变化，分子间的引力、斥力总是相等的
②.无论分子间的距离怎样变化，分子间的斥力总小于引力
③.当分子处于平衡位置时，分子间的斥力和引力的大小相等
④.当分子间距离增大时，分子间的斥力比引力减小得快
| A．①② | B．③④ | C．①③ | D．②④ |
5.
根据
粒子散射实验，卢瑟福提出了原子的核式结构模型，图中虚线表示原子核所形成的电场的等势线，实线表示一个粒子的运动轨迹．在粒子从a运动到b、再运动到c的过程中，下列说法正确的是( )
粒子散射实验，卢瑟福提出了原子的核式结构模型，图中虚线表示原子核所形成的电场的等势线，实线表示一个粒子的运动轨迹．在粒子从a运动到b、再运动到c的过程中，下列说法正确的是( )| A．动能先增大，后减小 |
| B．电势能先减小，后增大 |
| C．电场力先做负功，后做正功，总功等于零 |
| D．加速度先变小，后变大 |
2.选择题- (共5题)
8.阅读短文，从每小题所给的四个选项中，选出正确的选项。D
Few others know more personal information about people than the smart phones in their pockets: phone numbers, location(位置), even the owner's real name and a unique(唯一的) ID number that can never be changed or turned off.
These phones don't keep secrets. They are sharing this personal information widely and secretly, a Wall Street Journal survey has found. An examination of 101 popular smart phones "apps" games and other software(软件) showed that 56 sent the phone's unique ID to other companies without users' awareness or agreement. Five sent age, nationalities and other personal information to outsiders.
The findings discover the effort by those app companies to collect personal information in order to get sponsorship (赞助) for which are largely traded. The Pandora, a music app, sends age, location and other information to different ad companies. A game called Paper Toss, in which players try to throw paper into a trash can, also sends the phone's ID number to at least five ad companies. Omegle, an iphone app for meeting strangers around for the purpose to make friends, does the same thing. For these companies, personal information weighs much more than apps themselves.
"In the world of mobile, there is no secret" says Michael Becker of the Mobile Marketing Association. A mobile phone is "always with us. It's always on". Mobile phone company says it reviews each app before offering it to users. Both Apple and Google say they protect users by requiring apps to ask users for agreement before providing kinds of information, such as location. "We have created strong protections for our customers, especially location-based information." says one mobile phone company. "Trust is badly important."
Few others know more personal information about people than the smart phones in their pockets: phone numbers, location(位置), even the owner's real name and a unique(唯一的) ID number that can never be changed or turned off.
These phones don't keep secrets. They are sharing this personal information widely and secretly, a Wall Street Journal survey has found. An examination of 101 popular smart phones "apps" games and other software(软件) showed that 56 sent the phone's unique ID to other companies without users' awareness or agreement. Five sent age, nationalities and other personal information to outsiders.
The findings discover the effort by those app companies to collect personal information in order to get sponsorship (赞助) for which are largely traded. The Pandora, a music app, sends age, location and other information to different ad companies. A game called Paper Toss, in which players try to throw paper into a trash can, also sends the phone's ID number to at least five ad companies. Omegle, an iphone app for meeting strangers around for the purpose to make friends, does the same thing. For these companies, personal information weighs much more than apps themselves.
"In the world of mobile, there is no secret" says Michael Becker of the Mobile Marketing Association. A mobile phone is "always with us. It's always on". Mobile phone company says it reviews each app before offering it to users. Both Apple and Google say they protect users by requiring apps to ask users for agreement before providing kinds of information, such as location. "We have created strong protections for our customers, especially location-based information." says one mobile phone company. "Trust is badly important."
3.解答题- (共2题)
11.
如图所示，在平行板电容器之间有匀强电场，一带电粒子（重力不计）以速度v0垂直电场线射入电场，经过时间tl穿越电场，粒子的动能由Ek增加到2Ek ;若这个带电粒子以速度
v0垂直进人该电场，经过时间t2穿越电场。求：
(1)带电粒子两次穿越电场的时间之比t1：t2;
(2)带电粒子第二次穿出电场时的动能。
v0垂直进人该电场，经过时间t2穿越电场。求：(1)带电粒子两次穿越电场的时间之比t1：t2;
(2)带电粒子第二次穿出电场时的动能。
12.
如图所示,两个可看成点电荷的带正电小球A和B位于同一竖直线上，在竖直向上的匀强电场中保持不变的距离沿竖直方向匀速下落已知A球带电荷量为Q，质量为4m，B球带电荷量为4Q,质量为m,求匀强电场的场强大小和两球间的距离?
4.实验题- (共2题)
13.
（1）在用电流场模拟静电场描绘电场等势线的实验中，给出下列器材，应选用是______（用字母表示）。
A.6V的交流电源
B.6V的直流电源
C.100V的直流电源
D.量程0～0.5V，零刻度在刻度盘中央的电压表
E.量程0～300μA，零刻度在刻度盘中央的电流表
（2）该实验装置如图所示，如果以a、b两个电极的连线为x轴，以a、b连线的中垂线为y轴，并将一个探针固定置于y轴上的某一点，合上开关S，而将另一探针由O点左侧沿x轴正方向移到O点右侧的过程中，灵敏电流表G的指针与零刻度夹角的变化情况是__________。
A.逐渐增大 B.逐渐减小 C.先变大后变小 D.先变小后变大
A.6V的交流电源
B.6V的直流电源
C.100V的直流电源
D.量程0～0.5V，零刻度在刻度盘中央的电压表
E.量程0～300μA，零刻度在刻度盘中央的电流表
（2）该实验装置如图所示，如果以a、b两个电极的连线为x轴，以a、b连线的中垂线为y轴，并将一个探针固定置于y轴上的某一点，合上开关S，而将另一探针由O点左侧沿x轴正方向移到O点右侧的过程中，灵敏电流表G的指针与零刻度夹角的变化情况是__________。
A.逐渐增大 B.逐渐减小 C.先变大后变小 D.先变小后变大
的正方形小格的纸上，测得油膜占有的小正方形个数为X。用以上字母表示油酸分子的大小
=__________试卷分析
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【1】题量占比
单选题:(5道)
选择题:(5道)
解答题:(2道)
实验题:(2道)
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【2】：难度分析
1星难题：0
2星难题：0
3星难题：0
4星难题：1
5星难题：0
6星难题：3
7星难题：0
8星难题：4
9星难题：1