1.单选题- (共9题)

A.电子所受的电场力增大,电子克服电场力做功 |
B.电子所受的电场力减小,电场力对电子做正功 |
C.电子所受的电场力增大,电势能减少 |
D.电子所受的电场力增大,电势能增大 |

A.电势能逐渐减小 |
B.电势能逐渐增大 |
C.q3受到的电场力逐渐减小 |
D.q3受到的电场力逐渐增大 |
A.-F/2 | B.F/2 | C.-F | D.F |


A.电场中某点的电场强度在数值上等于单位电荷在该点所受的电场力 |
B.电场强度的方向总是跟电场力的方向一致 |
C.在点电荷Q附近的任意一点,如果没有把试探电荷q放进去,则这一点的电场强度为零 |
D.根据公式![]() |

A.M、N点的场强EM>EN |
B.粒子在M、N点的加速度aM>aN |
C.粒子在M、N点的速度vM>vN |
D.粒子带正电 |






A.E点的电势与C点的电势相等 | B.![]() ![]() |
C.电场强度的大小为![]() ![]() | D.电场强度的大小为![]() ![]() |

A.带点油滴将沿竖直方向向上运动 | B.P点的电势将降低 | C.带点油滴的电势能将减少 | D.若电容器的电容减小,则极板带电量将增大 |
2.选择题- (共4题)
用括号内所给词的适当形式填空
⑴I enjoy reading this kind of {#blank#}1{#/blank#} magazine. (每周)
⑵It is good for your health to {#blank#}2{#/blank#} deeply. (呼吸)
⑶It {#blank#}3{#/blank#} on the two sides of the river.(位于)
⑷A large number of new {#blank#}4{#/blank#} will live in Yangzhou.(移居者)
⑸The small town is becoming more and more {#blank#}5{#/blank#} and polluted.(拥挤的)
⑹His mother has devoted{#blank#}6{#/blank#} to the teaching of Home Economics.(she)
⑺The making paper was a Chinese{#blank#}7{#/blank#} . (invent)
⑻It is well {#blank#}8{#/blank#} that Yangzhou is one of the most beautiful cities in our country.(know)
⑼He had been deeply affected by the{#blank#}9{#/blank#} death of his father. (suddenly)
⑽There will be {#blank#}10{#/blank#} no rain tomorrow.(probable)
3.多选题- (共1题)
A.根据电场强度的定义式![]() |
B.根据电容的定义式![]() |
C.根据真空中点电荷的电场强度公式![]() |
D.根据电势差的定义式![]() |
4.解答题- (共1题)
-
【1】题量占比
单选题:(9道)
选择题:(4道)
多选题:(1道)
解答题:(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:0
5星难题:0
6星难题:6
7星难题:0
8星难题:4
9星难题:1