1.单选题- (共15题)
A.加速度逐渐变小库仑力逐渐变大 |
B.速度逐渐变大库仑力逐渐变小 |
C.速度逐渐变小库仑力逐渐变小 |
D.加速度逐渐变大,库仑力逐渐变大 |

A.若a顺时针摆动,证明a、b带同种电荷 |
B.若a逆时针摆动,证明a、b带异种电荷 |
C.若a顺时针摆动,证明a、b带异种电荷 |
D.若a逆时针摆动,证明a、b带同种电荷 |
A.距离变大,库仑力变大 | B.距离变大,库仑力变小 |
C.距离变小,库仑力变大 | D.距离变小,库仑力变小 |

A.a点场强一定比b点场强大 |
B.a点场强一定比b点场强小 |
C.同一电荷在a、b两处所受电场力的大小可能相同 |
D.同一电荷在a、b两处所受电场力的方向一定相同 |

A. EA、EB方向相同 B. EA > EB
C. EA < EB D. EA = EB
A.通电导线不受安培力作用的地方一定没有磁场 |
B.将I、L相同的通电导线放在同一匀强磁场的不同地方,受安培力一定相同 |
C.磁感线指向磁感应强度减小的方向 |
D.以上说法都不正确 |
A.电流方向反向时,导体受力方向改变 |
B.磁场方向反向时,导体受力方向改变 |
C.电流方向和磁场方向同时反向,导体的受力方向改变 |
D.电流方向和磁场方向同时反向,导体的受力方向不变 |

A.平行纸面向上 | B.平行纸面向下 |
C.垂直纸面向里 | D.垂直纸面向外 |

A.粒子带负电,向下运动 |
B.粒子带正电,向左运动 |
C.粒子带负电,向上运动 |
D.粒子带正电,向右运动 |
2.选择题- (共15题)
根据材料内容,选择正确答案。
There are 50 students in Class 8. Now they are doing a survey about how they spend their pocket money. Some spend it on books, and others spend it on visiting. What about you? Please read the form and answer the questions.
10% |
55% |
12% |
10% |
13% |
Buy some CDs and computer games. |
Buy some snacks and drinks. |
Buy some books in the bookshop. |
Save it up and spend it traveling on holiday. |
Buy some gifts for friends. |
根据材料内容,选择正确答案。
There are 50 students in Class 8. Now they are doing a survey about how they spend their pocket money. Some spend it on books, and others spend it on visiting. What about you? Please read the form and answer the questions.
10% |
55% |
12% |
10% |
13% |
Buy some CDs and computer games. |
Buy some snacks and drinks. |
Buy some books in the bookshop. |
Save it up and spend it traveling on holiday. |
Buy some gifts for friends. |
3.多选题- (共2题)

A.电场线所表示的电场方向是自左向右的 |
B.电场线所表示的电场方向是自右向左的 |
C.正电荷q受电场力方向是自左向右的 |
D.正电荷q受电场力方向是自右向左的 |
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【1】题量占比
单选题:(15道)
选择题:(15道)
多选题:(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:4
7星难题:0
8星难题:11
9星难题:2