1.单选题- (共10题)
A． ， | B．，  |
C． ， | D．，  |
| A．若将a接电源正极，b接电源负极，弹簧秤的示数将减小. |
| B．若将a接电源正极，b接电源负极，弹簧秤的示数将增大. |
| C．若将a接电源正极，b接电源负极，弹簧秤的示数将不变 |
| D．不能确定，与磁铁进入通电螺线管的长度有关。 |
| A．M1＞M2 | B．M1＝M2 |
| C．M1＜M2 | D．无法确定 |
A. 逐渐增大，方向向左 B. 逐渐增大，方向向右
C. 保持不变，方向向左 D. 保持不变，方向向右
A. q1、q2都是正电荷，且q1＞q2
B. q1是正电荷，q2是负电荷，且q1＜|q2|
C. q1是负电荷，q2是正电荷，且|q1|＞q2
D. q1、q2都是负电荷，且|q1|＜|q2|
| A．继续匀速下滑 |
| B．将加速下滑 |
| C．将减速下滑 |
| D．上述三种情况都有可能发生 |
2.选择题- (共1题)
阅读理解
In the last few years the popularity of eBooks has exploded．The advantages are clear：You can carry as many books with you as you want．You can simply download every book you like and instantly start reading instead of having to wait for the book to arrive by mail．
However，one thing hadn't changed．If you wanted to rent a book you were still forced to use hardcopy books．Until now that is, Amazon．com recently announced the start of a new program where you can rent eBooks．
Where to rent eBooks？
As mentioned before，Amazon．com is the first and currently the only retailer (零售商) that has a program in place for renting eBooks． Luckily，Amazon is the largest online retailer in the world and their eBook assortment (分类) is massive．They are also the producer of the Kindle，the most popular Reader，which means you can be sure that the eBooks you rent will work．
You can currently only rent Textbooks．But this is likely to change as soon as word gets out that you can save money by renting eBooks.
Why rent eBooks at Amazon?
* Save money：Save up to 80% of the normal price of the eBook．
* Decide how long you rent：From 30 days to 360 days，you decide how long you want it．You can extend the time by as little as a day．Or simply buy the eBook if you want to keep it after all．
*Use any device：If you rent an eBook from Amazon，you can read it on your PC，Mac，iPad，iPhone，Android device，Windows Phone 7．Blackberry．or Kindle．
* Keep your notes：Do you like to keep annotations (注释) and highlights in your eBooks？Don't worry．You can always revisit your notes and highlights through Amazon．com．
How to rent eBooks？
Simply search for the eBook you want to rent on Amazon．com and select the "Rent eBooks" option. After that，a new page will open where you can select how long you'd like to rent the eBook．You can read eBooks for a period of 30 to 360 days．
You decide how long you need the eBook．If you later find out you need it for longer, you can simply extend the time．Or buy it for the normal price whenever you want.
Once you've chosen the time you want to rent the eBook，you simply go to checkout．Or you can use the "Rent now" button．
3.填空题- (共3题)
4.解答题- (共2题)
（1）求细线的张力；
（2）剪断细线，若A球下落的最大速度为vm，求A球下落到速度最大过程中，电场力对A球做的功．
（3）分析剪断细线后，B球的运动情况及能量的转化情况．
（1）分析、判断导体棒所受安培力的方向,
（2）匀强磁场的磁感应强度的大小。
（3）若磁场方向可以变化，要保持导体棒静止在斜面上，试再举出两个可能的磁场方向，并分析说明磁感应强度B的大小。
5.实验题- (共1题)
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【1】题量占比
单选题:(10道)
选择题:(1道)
填空题:(3道)
解答题:(2道)
实验题:(1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：1
5星难题：0
6星难题：6
7星难题：0
8星难题：8
9星难题：1