江苏省虔州艺术学校2018-2019学年高二上学期第一次月考物理试题

适用年级:高二
试卷号:206237

试卷类型:月考
试卷考试时间:2018/10/18

1.选择题(共2题)

1.

阅读理解

    Remember that goals are dreams with a timetable. Our goals are important for us to create what enriches our life. A very common attitude among people who are successful is that their success lies in their ability to provide themselves goals that are both numerous and exciting. When you think about your future,you are helping to feed a long-term goal of what you want to create.

    To realize your dreams,you must translate your vision into a series of actions you can take as soon as possible. You should be able to measure these results,to make sure they take you wherever you want. And this step should not be viewed lightly! Indeed,very few people set goals and concrete actions for themselves to achieve. Very few people note what they want to accomplish,and know each day whether they have indeed advanced in the direction of their dreams.

    Therefore one of the secrets that you can get results from is to write down your goals on paper first. When you give your dreams a form,they become more concrete,and you can refer to them often and easily. Whenever you read the dreams that you note down,you fill your mind with positive and motivational thoughts.

    Unfortunately,many people stop there. They just simply make wishes, hope and wait. These people do not bring positive difference in their lives,because that sort of behavior is just wishful thinking. Success is not at all a miracle. It depends on clear and realistic targets through serious thoughts:concrete actions and perseverance(毅力). Don't forget,your past does not determine your future. Only you now is your potential!

根据短文内容,选择最佳答案,并将选定答案的字母标号填在题前括号内。

2.照样子,写词语
①默默地: {#blank#}1{#/blank#}   {#blank#}2{#/blank#}    {#blank#}3{#/blank#}
②慢吞吞: {#blank#}4{#/blank#}   {#blank#}5{#/blank#}    {#blank#}6{#/blank#}
③一摇一晃:{#blank#}7{#/blank#}   {#blank#}8{#/blank#}    {#blank#}9{#/blank#}

2.单选题(共9题)

3.
下列关于点电荷的说法中正确的是  
A.只要带电体的体积很小,都可以看成点电荷
B.只要带电体的电量很小,都可以看成点电荷
C.只要带电体的大小远小于电荷间的距离,都可看成点电荷
D.均匀带电圆环一定不能看成点电荷
4.
有一个电容器,当它所带的电荷量时,电容器两极板间的电压,这个电容器的电容大小是  
A.B. FC. FD.
5.
在医疗手术中,为防止麻醉剂乙醚爆炸,地砖要用导电材料制成,医生护士要穿由导电材料制成的鞋子和棉布外套,一切设备要良好接地,这样做是为了  
A.应用静电B.除菌消毒C.消除静电D.防止漏电
6.
油罐车后面都有一条拖地的铁链,其作用是(   )
A.向外界散热
B.把电荷导入大地,避免由静电造成危害
C.作为油罐车的标志
D.发出响声,提醒其他车辆和行人的注意
7.
真空中有两个点电荷q1q2,将它们的电荷量和间距都变为原来的2倍,则它们间的库仑力变为原来的(   )
A.1/2倍B.1倍C.2倍D.4倍
8.
如图是某静电场电场线的分布图,M、N是电场中的两个点,下列说法正确的是()
A.M点场强大于N点场强
B.M点电势高于N点电势
C.将电子从M点移动到N点,其电势能增加
D.将电子从M点移动到N点,电场力做正功
9.
关于电流,下列说法正确的是  
A.通过导线截面的电量越多,电流越大
B.单位时间内通过导体横截面的电荷量越多,则导体中电流越大
C.电流有方向,因此电流是矢量
D.通电时间越短,电流越大
10.
化纤衣服很容易沾上灰尘,这是因为它
A.容易积累静电荷
B.具有一定的粘性
C.具有大量的微孔
D.质地柔软
11.
某金属导体中,如果在2秒钟内共有个电子通过某横截面,那么通过这个导体的电流是  
A.0B.C.D.

3.多选题(共3题)

12.
如图所示,水平放置的平行板电容器MN与一电源相连在电容器的两板间有一带电的小球P处于静止状态现将电容器两板间的距离增大,则  
A.电容变大B.小球向上运动C.电容变小D.小球向下运动
13.
关于避雷针,以下说法正确的是  
A.避雷针避雷是中和云层的异种电荷
B.避雷针避雷是将云层中积聚的电荷导入大地
C.为了美观,通常把避雷针顶端设计成球形
D.避雷针安装在高大建筑物顶部,且必需接地
14.
以下的几种做法中,属于防止静电危害的是()
A.油罐车后拖一条搭地铁链
B.用导电橡胶做飞机轮的轮胎
C.水泥预制板中装有钢筋
D.增加印刷厂车间内空气的湿度

4.填空题(共3题)

15.
如图,用绝缘丝线将一带正电的小球N挂在水平横杆上的P点,在N的左侧放置一带正电的小球M, 由于静电相互作用,N平衡时丝线与竖直方向有一定的偏角。如果M的电荷量加倍,丝线偏角________(选填“变大”、“变小”或“不变”)。如果两球的电荷量不变,把M向左移动一定距离,N静止时受到的静电力________(选填“变大”、“变小”或“不变”)。
16.
静电力常量k=__________________。
17.
一试探电荷q=+4×10-9 C,在电场中P点受到的静电力F=6×10-7 N.则:
(1)P点的场强大小?
(2)将试探电荷移走后,P点的场强大小为?
(3)放一电荷量为q′=1.2×10-6 C的电荷在P点,受到的静电力F′的大小?

5.解答题(共2题)

18.
真空中有两个点电荷,所带电量分别为,相距2cm,求它们之间的相互作用力,是引力还是斥力.
19.
在燃气灶上常常安装电子点火器,用电池接通电子线路产生高压,通过高压放电的电火花来点燃气体请问点火器的放电电极为什么做成针尖状而不是圆头状?
试卷分析
  • 【1】题量占比

    选择题:(2道)

    单选题:(9道)

    多选题:(3道)

    填空题:(3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:2

    7星难题:0

    8星难题:4

    9星难题:11