1.单选题- (共5题)

A.小物块所受的电场力逐渐减小 |
B.小物块具有的电势能逐渐减小 |
C.M点的电势一定高于N的电势 |
D.小物块电势能的减小量一定等于克服摩擦力做的功 |












A.电势能逐渐减小 | B.电势能逐渐增大. |
C.![]() | D.![]() |









A.![]() ![]() |
B.![]() ![]() |
C.一负电荷在![]() ![]() |
D.将一正电荷由![]() ![]() ![]() |
A.-F/2 | B.F/2 | C.-F | D.F |






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![]() ![]() |
2.选择题- (共1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4题)










A.小球在![]() ![]() |
B.水平匀强电场的电场强度为![]() |
C.若电场强度加倍,小球运动的加速度大小为![]() |
D.若电场强度减半,小球运动到![]() ![]() |

A.M点的电场强度比N点的电场强度小 |
B.P点的电势比Q点的电势低 |
C.负电荷在P点的电势能小于其在Q点的电势能 |
D.M、O间的电势差等于O、N间的电势差 |

A.![]() ![]() |
B.![]() ![]() |
C.若将一试探电荷![]() ![]() ![]() |
D.若某一点电荷只在电场力的作用下沿虚线由![]() ![]() |

A.P点电势高于Q点电势 |
B.P点场强大于Q点场强 |
C.P、Q两点的电势差为![]() |
D.带负电粒子在P点的电势能大于在Q点的电势能 |
4.填空题- (共1题)
5.解答题- (共2题)
(1)要使小滑块恰好运动到圆轨道的最高点C,滑块应在水平轨道上离N点多远处释放?
(2)这样释放的滑块通过P点时对轨道压力是多大?(P为半圆轨道中点)












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6.实验题- (共1题)
-
【1】题量占比
单选题:(5道)
选择题:(1道)
多选题:(4道)
填空题:(1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:0
5星难题:0
6星难题:8
7星难题:0
8星难题:4
9星难题:1