甘肃省天水市一中2018-2019学年高二第一学期第一学段考试(理科)物理试题

适用年级:高二
试卷号:182874

试卷类型:单元测试
试卷考试时间:2018/11/12

1.选择题(共4题)

1.

阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中选出最佳选项。

    There is a well-known story about a farmer1 found an eagle(鹰) egg. The story reminds us of the importance of developing our full potential(潜力).

    One day, a hardworking 2 found an eagle's egg lying on the ground of his farm. He was in a hurry 3 he paid no attention to it and 4placed it together with all the chicken eggs. After several days, the egg hatched(孵化)and the little eagle 5 into the world.

    The eagle thought he was 6 same as the other chickens, 7 the eagle pecked(啄食)and dug for worms. He ran about and sometimes jumped around, flying a few 8 in the air like the chickens. Over the years, the eagle grew old and tired. One day he saw a splendid bird 9 overhead, and asked, “ 10 is that?” “That's the king of the 11— the bald eagle,” replied a chicken. “The sky is her home. We're chickens -- our home is 12 the farm.”

    And so the eagle lived and died 13 a chicken, for that's what he believed he was.

    Are you an eagle tha 14 like a chicken? 15 , many people have great talents bu 16 bring them to use. Actually, we 17 make our talents take off by developing our character strengths. Suppose there was a young man who 18 in the world. He asked questions about his environment, explored new neighborhoods where he lived, and soon he mentally mapped out the city he lived in. He used his curiosity to make the 19 of his talents for spatial(空间的)intelligence.

    When we use our character strengths, we will 20 that we are eagles.

2.

阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中选出最佳选项。

    There is a well-known story about a farmer1 found an eagle(鹰) egg. The story reminds us of the importance of developing our full potential(潜力).

    One day, a hardworking 2 found an eagle's egg lying on the ground of his farm. He was in a hurry 3 he paid no attention to it and 4placed it together with all the chicken eggs. After several days, the egg hatched(孵化)and the little eagle 5 into the world.

    The eagle thought he was 6 same as the other chickens, 7 the eagle pecked(啄食)and dug for worms. He ran about and sometimes jumped around, flying a few 8 in the air like the chickens. Over the years, the eagle grew old and tired. One day he saw a splendid bird 9 overhead, and asked, “ 10 is that?” “That's the king of the 11— the bald eagle,” replied a chicken. “The sky is her home. We're chickens -- our home is 12 the farm.”

    And so the eagle lived and died 13 a chicken, for that's what he believed he was.

    Are you an eagle tha 14 like a chicken? 15 , many people have great talents bu 16 bring them to use. Actually, we 17 make our talents take off by developing our character strengths. Suppose there was a young man who 18 in the world. He asked questions about his environment, explored new neighborhoods where he lived, and soon he mentally mapped out the city he lived in. He used his curiosity to make the 19 of his talents for spatial(空间的)intelligence.

    When we use our character strengths, we will 20 that we are eagles.

3.已知函数f(x)= {#mathml#}{1x1,0<x<111x,x1{#/mathml#} .
4.已知函数f(x)= {#mathml#}{1x1,0<x<111x,x1{#/mathml#} .

2.单选题(共9题)

5.
一平行电容器两极板之间充满云母介质,接在恒压直流电源上,若将云母介质移出,则电容器(  )
A. 极板上的电荷量变大,极板间的电场强度变大
B. 极板上的电荷量变小,极板间的电场强度变大
C. 极板上的电荷量变大,极板间的电场强度不变
D. 极板上的电荷量变小,极板间的电场强度不变
6.
如图所示为某区域的电场线分布, A、B、C是电场中的三点,则下列说法中正确的是(  )

A. 电势,场强EA>EB
B. 电势,场强EA<EB
C. 电势,场强EB>EC
D. 电势,场强EB<EC
7.
下列表达式中,q一定是场源电荷的是   (    )
A.F=KQq/r2B.E=F/qC.WAB=qUABD.E=kq/r2
8.
关于电场强度、电势和电势能,下列说法中正确的是(    )
A.在电场中,电势高的地方,电荷在该点具有的电势能就大
B.在电场中,电势高的地方,放在该点的电荷的电荷量越大,它所具有的电势能也越大
C.在电场中电势高的点,电场强度一定大
D.在负点电荷所产生的电场中的任何一点上,正电荷所具有的电势能一定小于负电荷所具有的电势能
9.
如图所示,正点电荷Q产生的电场中,已知AB间的电势差为U,现将电荷量为q的正点电荷从B移到A,则(  ).
A.外力克服电场力做功QU,电势能增加qU
B.外力克服电场力做功qU,电势能增加QU
C.外力克服电场力做功qU,电势能增加qU
D.外力克服电场力做功QU,电势能减少QU
10.
如图所示,用等长的轻绳悬挂两个质量相同的小球,今使两小球分别带有等量异种电荷,而使整个装置处在水平方向的匀强电场中,则平衡后应该如图中的( )
A.B.
C.D.
11.
下列哪个不是物体的带电方式(   )
A.摩擦起电B.接触起电C.感应起电D.接地起电
12.
关于点电荷下边说法正确的是 ( )
A.当带电体间的间距离远大于带电体尺寸时可以看成点电荷
B.一切带电体都可以看成点电荷
C.只有带电体的体积很小时才能看成点电荷
D.只有放入真空中的带电体才能看成点电荷
13.
P、Q两电荷形成的电场的电场线分布如图所示,a、b、c、d为电场中的四个点.一个离子从a运动到b(不计重力),轨迹如图中虚线所示,则下列判断正确的是(  )
A.离子带正电
B.c点电势低于d点电势
C.离子在a点时的加速度大于在b点时的加速度
D.离子在a点时的电势能大于在b点时的电势能

3.多选题(共1题)

14.
如图所示,半径为R的导体环的顶端有一宽为的小狭缝,且满足远远小于R ,在导体环上均匀分布着总电荷量为q的负电荷。已知静电力常量为k ,则下列说法正确的是(  )
A.导体环在圆心O点处产生的场强大小为
B.方向由A指向O
C.导体环在圆心O点处产生的场强大小为
D.方向由O指向A

4.解答题(共2题)

15.
如图所示,匀强电场的电场强度为E,一带电小球质量为m,轻质悬线长为l,静止时悬线与竖直方向成30°角.

(1)小球带何种电荷,电荷量是多少?
(2)若将小球拉到悬点正下方由静止释放,小球通过原平衡位置时的速度大小是多少?
16.
在如图所示的匀强电场中,沿电场线方向有AB两点,AB两点间的距离。若一个电荷量的试探电荷在匀强电场中所受电场力的大小为求:

(1)电场强度的大小E
(2)A、B两点间的电势差
(3)将该试探电荷从A点移至B点的过程中,电场力所做的功W。
试卷分析
  • 【1】题量占比

    选择题:(4道)

    单选题:(9道)

    多选题:(1道)

    解答题:(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:7

    7星难题:0

    8星难题:1

    9星难题:4