上海市虹口区2016届高三上学期期末教学质量诊断物理试题.doc
上海市虹口区届高三教案物理上学期期末质量抽查学习的试题含解析
上海市虹口区2019届高三物理上学期期末质量抽查试题（含分析）一、选择题(共40分。
第1-8小题，每题3分。
第9-12小题每题4分。
每题只有一个正确答案。
)【答案】D【分析】【剖析】国际单位制规定了七个基本物理量，分别为长度、质量、时间、热力学温度、电流、光强度、物质的量，它们的在国际单位制中的单位称为基本单位，而物理量之间的关系式推到出来的物理量的单位叫做导出单位；【详解】单位制包含基本单位和导出单位，规定的基本量的单位叫基本单位，国际单位制规定了七个基本物理量，分别为长度、质量、时间、热力学温度、电流、光强度、物质的量，他们在国际单位制中的单位分别为米、千克、秒、开尔文、安培、坎德拉、摩尔。
A、特斯拉是磁感觉强度的单位，是导出单位，故A错误；B、伏特是电压的单位，是导出单位，故B错误；C、库仑是电量的单位，是导出单位，故C错误；D、安培是电流的单位，是国际单位制中基本单位，故D正确。
【点睛】国际单位制规定了七个基本物理量，这七个基本物理量分别是谁，它们在国际单位制分别是谁，这都是需要学生自己记着的。
2.以下物理量的负号表示方向的是（）ts＝－8mE p W＝－10J【答案】B【分析】温度t=-10℃的“-”表示温度比零度低10.0℃，不表示方向．故A错误．物体的位移s=-8m，负号表示位移方向与正方向相反，故B正确物体的重力势能E=-50J的“-”表示重力势能比0小，不表示方向．故pC错误．阻力做功为W=-10J，负号表示该力是阻力，不表示方向．故D错误．应选B．3.如下图，质量为m的木块A放于斜面体B上，若A和B沿水平川面以同样的速度一同向左作匀速直线运动，则A和B之间的互相作使劲大小为【答案】A【分析】【剖析】选A为研究对象，则A遇到重力、支持力、静摩擦力三个力，因为A和B一同做匀速直线运动，故A处于均衡状态，即A的重力、支持力、静摩擦力三力的协力为0，A和B之间的作使劲为支持力和摩擦力的协力；【详解】选A为研究对象，则A遇到重力、支持力、静摩擦力三个力，因为A和B一同做匀速直线运动，故A处于均衡状态，即A的重力、支持力、静摩擦力三力的协力为0；此中支持力和摩擦力是B作用于A的，故A和B之间的互相作使劲的大小就等于支持力和摩擦力的协力的大小，由力的合成知识知：如有N个力的协力为0，此中随意一个力的大小都等于此外个力的协力的大小，故摩擦力与支持力的协力的大小等于重力的大小，故A正确，BCD错误。
上海市虹口区高三上学期期末教学质量监控测试物理试卷.pdf
上海市虹口区2015届高三上学期期末教学质量监控测试2015年1月物理试卷 2015.1 本试卷共11页，满分150分，考试时间120分钟。
本卷g均取10m/s2。
考生注意： 1．答卷前，考生务必在答题上用钢笔或圆珠笔清楚填写姓名、号，并用2B铅笔在答题上正确涂写号。
． 3． 一．单项选择题（共16分，每小题2分。
每小题只有一个正确选项。
） 1． ） （A）卡文迪什利用扭秤巧妙地测得静电力常量k的数值 （B）开普勒根据行星运动的规律，提出了万有引力定律 （C）伽利略通过对斜面实验结论的合理外推，得出了自由落体运动的规律 （D）法拉第根据小磁针在通电导线周围的偏转，发现了电流的磁效应 2．如图，一定量的理想气体从状态a沿直线变化到状态b，在此过程中，其压强（ ） A）逐渐增大 B）逐渐减小 C）始终不变 D）先增大后减小 3．一质点沿x轴做简谐运动，其振动图象如图所示。
在1.5s~2s的时间内，质点的速度v、加速度a的大小的变化情况是（ ） （A）v变大，a变大 （B）v变小，a变小 （C）v变大，a变小 （D）v变小，a变大 4． ） （A）M处受到地面的弹力竖直向上 （B）N处受到其它圆木的弹力竖直向上 （C）M处受到地面的摩擦力沿MN方向 （D）N处受到其它圆木的摩擦力沿水平方向5．2011年11月3日，我国发射的“天宫一号”目标飞行器与发射的“神舟八号”飞船成功进行了第一次无人交会对接。
假设对接前“天宫一号”和“神舟八号”绕地球做匀速圆周运动的轨道如图所示,虚线A代表“天宫一号”的轨道，虚线B代表“神舟八号”的轨道， ） （A）“天宫一号”和“神舟八号”的运行速均大于7.9km/sB）“天宫一号”的运行速率小于“神舟八号”的运行速率 C）“天宫一号”的运行周期小于“神舟八号”的运行周期 D）“天宫一号”的向心加速度大于“神舟八号”的向心加速度 6．图示为用“”门、蜂鸣器等组成的简易控制电路。
2016届上海部分区质量检测高三物理试卷汇编(学生版)
质量检测高三物理试卷2016．1宝山一．单项选择题（共16分，每小题2分。
每小题只有一个正确选项。
）1、下列属于物理学基本单位的是（ ）（A ）牛顿N （B ）摄氏度℃ （C ）安培A （D ）特斯拉T2、下列现象中不属于机械波实例的是（ ）（A ）歌唱家引吭高歌，人们听到动人歌声（B ）手机在有信号的场合发送微信（C ）晾在绳上的纱巾被风吹动，出现波纹（D ）蜻蜓点水后形成涟漪3、做竖直上抛运动的物体，在任意相同时间间隔内，速度的变化量（ ）（A ）大小相等、方向相同 （B ）大小相等、方向不同（C ）大小不等、方向不同 （D ）大小不等、方向相同4、伽利略开创了实验研究和逻辑推理相结合探索自然规律的科学方法，利用这种方法伽利略发现的规律有（ ）（A ）发现单摆具有等时性并得出了单摆的周期公式（B ）自由落体运动是一种匀变速运动（C ）惯性定律（D ）重的物体比轻的物体下落得快5、老师做了一个物理小实验让学生观察：一轻质横杆两侧各固定一金属环，横杆可绕中心点自由转动，老师拿一条形磁铁插向其中一个小环，后又取出插向另一个小环，同学们看到的现象是（ ） （A ）磁铁插向左环，横杆发生转动（B ）磁铁插向右环，横杆发生转动（C ）无论磁铁插向左环还是右环，横杆都不发生转动（D ）无论磁铁插向左环还是右环，横杆都发生转动6、下列说法正确的是（ ）（A ）两个分子之间的作用力随着距离的增大而减小（B ）内能在宏观上只与其温度和体积有关（C ）分子a 从远处趋近固定不动的分子b ，当a 到达受b 的作用力为零处时，a 的动能最大（D ）物质的状态在一定的条件下可以相互转变，在转变过程中不会发生能量交换7、一个质点在三个共点力F1、F2、F3的作用下处于平衡状态如图所则它们的大小关系是（ ）（A ）F1＞F2＞F3 （B ）F1＞F3＞F2（C ）F3＞F1＞F2 （D ）F2＞F1＞F38、一建筑塔吊如图所示向右上方匀加速提升建筑物料，若忽略空气阻力，则下列有关物料的受力图正确的是（ ）上理一、单项选择题1（共16分，每小题2分．每小题只有一个正确选项．）1．下列叙述中符合物理学史实的是( )A ．伽利略发现了单摆的周期公式B ．奥斯特发现了电磁感应现象C ．库仑通过扭秤实验得出了电荷间相互作用的规律D ．牛顿通过斜面理想实验得出了维持运动不需要力的结论2．下列公式中，既适用于点电荷产生的静电场，也适用于匀强电场的有( )①场强E= ②场强E= ③场强E=④电场力做功W=Uq 。
上海市虹口区高三物理上学期期末考试试题(上海虹口一
虹口区2013学年度第一学期高三年级物理学科期终教学质量监控测试题本试卷共12页，满分150分，考试时间120分钟。
本卷g均取10m/s2。
考生注意：1．答卷前，考生务必在答题纸上用蓝色或黑色的钢笔或圆珠笔清楚填写学校、班级、姓名、学号，并用2B铅笔在答题纸上正确涂写学号。
2．第一、第二和第三大题的作答必须用2B铅笔涂在答题纸上相应区域内与试卷题号对应的位置，需要更改时，必须将原选项用橡皮擦去，重新选择。
第四、第五和第六大题的作答必须用黑色的钢笔或圆珠笔写在答题纸上与试卷题号对应的位置（作图可用铅笔）。
3．第30、31、32、33题要求写出必要的文字说明、方程式和重要的演算步骤。
只写出最后答案，而未写出主要演算过程的，不能得分。
有关物理量的数值计算问题，答案中必须明确写出数值和单位。
一．单项选择题（共16分，每小题2分。
每小题只有一个正确选项。
）1．伽利略和牛顿为建立经典力学做出了卓越的贡献，下列说法中正确的是（）（A）伽利略制成了第一架观察天体的望远镜并发现了关于行星运动的三大定律（B）伽利略最先发现单摆做微小摆动的等时性（C）牛顿创建的通过理想实验探求自然规律的方法是科学研究中的一种重要方法（D）牛顿发现万有引力定律后不久，又利用扭秤测出了万有引力常量G的数值2．“等效替代”是物理学中常用的思想方法，下列概念中包含这种思想方法的是（）（A）位移（B）加速度（C）电势能（D）总电阻3．把单摆的振动看作是简谐运动，需要满足的条件是（）（A）摆球体积要大（B）摆线要粗而结实（C）最大摆角不超过5° （D）摆球的重心必须在球心上4．下列物理公式中，运用了比值定义方法的是（）（A）UIR=（B）Fam=（C）2kQEr=（D）FBIL=5．一列简谐横波在介质内传播，若波源质点突然停止振动，则（）（A）所有质点立即停止振动（B）已经振动的质点将继续振动，未振动的质点不可能再振动（C）能量继续向远处传递（D）能量立即停止传递6．某同学斜向上抛出一铅球，忽略空气阻力。
上海市虹口区高三语文上学期期末教学质量诊断(一模)试卷(含解析)
上海市虹口区2016届高三上学期期末教学质量诊断（一模）语文试题I卷一、现代文阅读（一）【组题】阅读下文，完成问题。
①一颗蒲公英小小的种子，被草地上那个小女孩轻轻一吹，神奇地落在这里便不再动了。
这也许竟是夙缘。
已经变得十分遥远的那个八月末的午夜，车子在黑幽幽的校园里林丛中旋转终于停住的时候，我认定那是我一生中最神圣的夜晚：命运安排我选择了燕．园一片土。
燕园的美丽是大家都这么说的，湖光塔影和青春的憧憬联系在一起，溢发充满了诗意的情趣。
每个北大学生都会有和这个校园相联系的梦和记忆。
②燕园其实并不大，未名不过一勺水。
水边一塔，并不可登；水中一岛，绕岛仅可百步余；另有楼台百十座，仅此而已。
但这小小校园却让所有在这里住过的人终生梦萦魂牵。
其实北大人说到校园，潜．意识中并不单指眼下的西郊燕园，他们大都无意间扩展了北大特有的校园观念：从未名湖到红楼，从蔡元培先生的铜像到民主广场。
或者在北大人心目中，校园□具体□抽象，他们似乎□乐于承认象征性的校园的灵魂。
1. 【题目】文中加点字注音正确的一项是（）（1）燕．园（2）潜．意识A. （1）yàn（2）qiǎnB. （1）yàn（2）qiánC. （1）yān（2）qiánD. （1）yān（2）qiǎn【解析】“燕”是多音字，在这里应读“yān”；“潜”不要误读为“qiǎn”。
失分点提醒：回答本题要掌握常见字的正确读音。
本题涉及的两个字，“燕”是多音字，这就要结合词语“燕园”来判断；“潜”经常会误读为“qiǎn”。
【答案】C【考点】识记现代汉语普通话常用字的字音【题点】多音字方言习惯性误读字【难度】基础题【题型】选择题【来源】上海市虹口区2016届高三上学期期末教学质量诊断（一模）语文试题第1题2. 【题目】文中画线词语含有错别字的一项是（）A. 夙缘B. 溢发C. 梦萦D. 不单【解析】B项“溢发”应为“益发”。
失分点提醒：回答本题要掌握字形和字义的密切联系。
上海市2016届高三上学期期末质量调研物理学试题
2015学年第一学期高三质量调研考试物理试卷4．全卷共8页。
满分150分。
考试时间120分钟。
第I 卷（共56分）一．单项选择题（共16分，每小题2分。
每小题只有一个正确选项。
答案涂写在答题纸上。
）1．下列能源中，属于常规能源的是（ ） （A ）风力资源 （B ）煤炭资源 （C ）太阳能 （D ）核能2．右图的逻辑电路名称及其真值表中X 分别为（ ） （A ）与门、0 （B ）与门、1（C ）或门、0 （D ）或门、13．我们能听见建筑物后传来的声音而看不见建筑物后的物体，这是因为（ ） （A ）声波是纵波 （B ）声波振幅大 （C ）声波波长较长 （D ）声波波速较小4．关于能量转化与守恒，下列说法中正确的是（ ） （A ）摩擦生热的过程是不可逆的（B ）凡是能量守恒的过程就一定会发生（C ）空调既能制热又能制冷，说明热传递不存在方向性（D ）由于能的转化过程符合能量守恒定律，所以不会发生能源危机5．平抛运动（ ）（A ）是匀速率曲线运动 （B ）是匀变速曲线运动 （C ）是变加速曲线运动 （D ）不可能是两个直线运动的合运动6．如图为某实验器材的结构示意图，金属内筒和绝热外筒间封闭了一定体积的理想气体，内筒中有水。
在对水加热升温的过程中，被封闭的空气（ ） （A ）内能保持不变 （B ）所有分子运动速率都增大 （C ）分子势能减小 （D ）分子平均动能增大7．布朗运动实验中得到某个观测记录如图，图中记录的是（ ） （A ）分子无规则运动的情况Z（B ）某个微粒做布朗运动的轨迹（C ）某个微粒做布朗运动的速度—时间图线（D ）按等时间间隔依次记录的某个运动微粒位置的连线8．物块静止在固定的斜面上，再分别按图示方向对物块施加大小相等的力F ，A 中F 垂直于斜面向上，B 中F 垂直于斜面向下，C 中F 竖直向上，D 中F 竖直向下，施力后可能会使物块沿斜面下滑的是（ ）二．单项选择题（共24分，每小题3分。
上海市虹口区2016届九年级上学期期末教学质量监控物理试卷
虹口区2015学年度第一学期初三年级理化学科期终教学质量监控测试题(满分150分，考试时间100分钟) 2016.01物 理 部 分考生注意：1．本试卷物理部分含五个大题。
2．答题时，考生务必按答题要求在答题纸规定的位置上作答，在草稿纸、本试卷上答题一律无效。
一、选择题（共16分）下列各题均只有一个正确选项，请将正确选项的代号用2B 铅笔填涂在答题纸的相应位置上，更改答案时，用橡皮擦去，重新填涂。
1．下列各物理量中，可鉴别物质的是A ．体积B ．密度C ．质量D ．重力2．在图1所示的实例中，利用连通器原理工作的是3．书包背带做得较宽是为了A ．减小压强B ．增大压强C ．减小压力D ．增大压力4．在物理学习的过程中，经常会用到一些科学研究方法。
下列事例中运用相同科学研究方法的是（1）用水流比作电流 （2）探究同一直线上二力的合成 （3）探究液体内部压强规律 （4）用总电阻替代两个串联的电阻 A ．（1）与（3） B ．（2）与（4） C ．（2）与（3） D ．（1）与（4）5．分别标有“220V 25W ”、“110V 25W ”、“36V 25W ”字样的三个白炽灯，它们各自在额定电压下工作时A ．“220V 25W ”最亮B ．“110V 25W ”最亮C ．“36V 25W ”最亮D ．三个白炽灯一样亮6．甲、乙两根铜导线串联，已知甲两端的电压比乙小，关于甲、乙的横截面积S 及长度l 的判断，不可能成立的是图 1A ．喷水枪B ．注射器C ．船闸D ．离心式水泵A ．S 甲＞S 乙，l 甲＞l 乙B ．S 甲＜S 乙，l 甲＞l 乙C ．S 甲＞S 乙，l 甲＜l 乙D ．S 甲＜S 乙，l 甲＜l 乙7．在图2（a ）、（b ）所示的电路中，电源电压相等且保持不变。
闭合电键S ，发现电流表A 1、A 2的示数相同，断开图2（a ）中的电键S ，发现电流表A 1的示数是A 2示数的0.8倍。
虹口区2016届高考二模(物理)
12． 某静电场在x轴上各点的电势φ随坐标x的分布图象如图所示。x轴上A、O、B三点的电势分别为φA、φO、φB，电场强度沿x轴方向的分量大小分别为EAx、EOx、EBx，电子在A、O、B三点的电势能分别为WA、WO、WB。下列判断中正确的是（ ）
（A）φO＞φB＞φA
（B）EOx＞EBx＞EAx
（C）WO＜WB＜WA
（A）FA大于FB
（B）FA、FB的合力大于mg
（C）若左右调节A点位置，可使FA等于FB
（D）若左右调节A点位置，可使FA、FB均大于mg
二．单项选择题（共
9．手机A的号码为13811111111，手机B的号码为13022222222。当手机A拨打手机B时，能听见B发出响声并且看见B上来电显示A的号码为13811111111。若将手机A置于透明真空罩中，再用手机B拨打手机A，则（ ）
（A）只要时间足够长，N筒上到处都落有分子
（B）分子不可能落在N筒上某两处，且与S平行的狭条上
（C）当≠n时（n为正整数），分子必落在不同的狭条上
（D）当＋＝n时（n为正整数），分子必落在同一个狭条上
16． 如图所示，质量相同的三个小球从足够长的斜面上同一点O分别以初速度v1、v2、v3水平抛出，落在斜面上的位置分别为A、B、C，已知OA＝AB＝BC，空气阻力不计，则（ ）
上海市虹口区2016届高三上学期期末教学质量诊断(一模)化学试卷.pdf
虹口区2015学年度第一学期期终教学质量监控测试 高三化学 试卷 2016.1 考生注意： 1．本试卷满分150分，考试时间120分钟。
2. 本考试设试卷和答题纸两部分，试卷包括试题与答题要求；所有答题必须涂（选择题）或写（非选择题）在答题纸上；做在试卷上一律不得分。
3. 答题前，考生务必在答题纸上用钢笔或圆珠笔清楚填写姓名、准考证号，并将核对后的条形码贴在指定位置上。
4. 答题纸与试卷在试题编号上是一一对应的，答题时应特别注意，不能错位。
相对原子质量：H-1C-12 N-14 O-16 Na-23 Al-27 Cl-35.5 Fe-56 选择题（本题共10分，每小题2分，每题只有一个正确选项）1．下列化学用语正确的是 A．氯化氢的比例模型：B．Cl－的结构示意图：C．氯乙烯的结构简式：CH2＝CHClD．HClO的电子式： 2．下列化学变化与氧化还原反应无关的是 A．粮食酿醋 B．铁片镀锌 C．盐酸除铁锈 D．铝制品钝化 3．实验室常用CS2溶解硫磺（S8）或白磷（P4），下列推测错误的是 A．CS2是非极性分子B．CS2的沸点高于CO2 C．CS2不能在空气中燃烧D．CS2能证明非金属性S＞C 4．下列物质中，阳离子与阴离子的个数比等于2∶1的是 A．Na2CO3溶液B．H2S气体 C．NaHSO4固体 D．Na2O2固体 5．欲使Ca(OH)2悬浊液变澄清，可以选择加入的试剂是 A．CaCl2浓溶液B．NaOH浓溶液 C．浓溶液D．MgCl2浓溶液 二、选择题（本题共36分，每小题3分，每题只有一个正确选项） A．氯水 B．氢硫酸 C．烧碱 D．绿矾 7．X、Y、Z是相邻主族的短周期元素，原子序数依次增大，三种元素原子的最外层电子数之和等于18，其中Y、Z同周期。
下列说法正确的是 A．离子半径：Y＜ZB．非金属性：X＞Z C．离子还原性：Y＞ZD．气态氢化物热稳定性：Z＜X 8．关于图示装置的说法正确的是A．闭合K，B．闭合K，C．闭合K，D．闭合K，析氢腐蚀9．下图分别表示红磷、白磷燃烧时的能量变化，下列说法中正确的是 A．白磷比红磷稳定 B．白磷燃烧产物比红磷燃烧产物稳定 C．1mol白磷转变为红磷放出2244.7kJ的热量 D．红磷燃烧的热化学方程式：4P(s)＋5O2(g)→P4O10(s)＋2954 kJ 10．互为等电子体的物质具有相似的结构特征和化学性质。
虹口区2016-2017学年度第一学期期终教学质量监控测试及答案
虹口区2016-2017学年度第一学期期终教学质量监控测试高三英语试卷第 I 卷 (共100分)I. Listening ComprehensionSection ADirections: In Section A, you will hear ten short conversations between two speakers. At the end of each conversation, a question will be asked about what was said. The conversations and the questions will be spoken only once. After you hear a conversation and the question about it, read the four possible answers on your paper, and decide which one is the best answer to the question you have heard.1. A.This afternoon. B. Tomorrow.C. Next week.D. Next month.2. A.She doesn‟t play tennis well. B. She likes other sports as well.C. She is an enthusiastic tennis player.D. She is a professional athlete.3. A.At a paint store. B. At an oil market.C. At a science museum.D. At a gallery.4. A.Work in the yard B. Buy some wood.C. Go to the bookstoreD. Take a walk.5. A.A taxi driver. B. A passenger.C. A car cleaner.D. A mechanic.6. A.Call a repairman. B. Get out the paper stuck.C. Turn to her colleague for help.D. Restart the machine.7. A.There are not enough gardens. B. Parking areas are full before 10:00.C. Parking areas are closed after 10:00.D. All classes begin at 10:00.8. A.The presentation will begin at noon. B. She‟ll present her work to the man.C. She‟d like to invite the man for lunch.D. She suggests working on the presentation at 12:00.9. A.The dormitory hours. B. The problem with the rules.C. The door number of the dormitory.D. The time to open the dormitory.10. A.The chairs didn‟t need to be painted. B. He doesn‟t like the color of the chairs.C. The park could have avoided the problem.D. The woman should have been more careful.Section BDirections: In Section B, you will hear two short passages and one longer conversation, and you will be asked several questions on each of the passages andthe conversation. The passages and the conversation will be read twice, but the questions will be spoken only once. When you hear a question, read the four possible answers on your paper and decide which one would be the best answer to the question you have heard.Questions 11 through 13 are based on the following passage.11. A. Worried. B. Surprised. C. Satisfied. D. Uninterested.12. A. It spoiled Joann a‟s reputation.B. It copied her ideas without permission.C. It bought Joann a‟s dishwashers.D. It wanted to share the dishwasher market.13. A. A successful business case. B. Joann a‟s waterless laundry.C. A case against a global company.D. The worldwide dishwasher market.Questions 14 through 16 are based on the following passage.14. A. Footprints. B. Food. C. Living insects. D. Orange seeds.15. A. Don‟t touch animals under any circumstances.B. Don‟t take away any natural objects from the park.C. Don‟t leave litter in the park or throw any off the boat.D. Don‟t transport animals from one island to another.16. A. To protect the guide‟s interest. B. To improve the unique environment.C. To ensure a trouble-free visit.D. To get rid of illegal behaviors.Questions 17 through 20 are based on the following conversation.17. A. Writing a book.B. Preparing a lecture.C. Searching for references.D. Reading comedies18. A. Make his topic more specific.B. Make a complete reading list.C. Read at least six books.D. Read some Hollywood comedies19. A. Hollywood in the 1930s and 1940s.B. 20th-century Hollywood comedies.C. Comedies in the 1930s and 1940s.D. Golden Age Hollywood comedies.20. A. Student and teacher.B. Reader and librarian.C. Customer and shop assistant.D. Two strangers reading in the libraryII. Grammar and VocabularySection ADirections:After reading the passage below, fill in the blanks to make the passage coherent and grammatically correct. For the blanks with a given word, fill in each blank with the proper form of the given word; for the other blanks, use one word that best fits each blank.Wedding in the United StatesWeddings in the United States vary as much as the people do. There are church weddings with a great deal of fanfare; there are weddings on mountain tops with guests (21) _____ (seat) on the rocks and even barefooted; and there have been weddings on the ocean floor with oxygen tanks for the guests. But many weddings, (22) _____ _____ _____ or how they are performed，include certain traditional customs.Before a couple is married, they become engaged. And then invitations are sent to those who live nearby, their close friends and their relatives who live far away. When everything is ready, then comes (23) _____ (exciting) moment of all.The wedding itself usually lasts between 20 and 40 minutes. The wedding party is walking throughthe aisle of the church as the Wedding March (24) _____ (play). The bride carrying a bouquet(花束) enters last with her father who will “give her away”. The gr oom enters the church from a side door. When the wedding party is gathered by the altar(圣坛), the bride and groom exchange vows. (25) _____ is traditional to use the words “To have and to hold from this day forward, for better, for worse, for richer, for p oorer, in sickness and in health, to love and to cherish, till death do us part”. (26) _____ (follow) the vows,the couple exchange rings. Wearing the wedding ring on the fourth finger of the left hand is an old custom.(27) _____ the ceremony there is ofte n a partycalled a “reception”, which gives the wedding guests an opportunity to congratulate the newlywed.The car in (28) _____ the couple leaves the church is decorated with balloons, streamer and shaving cream. The words “Just Married” are painted on th e trunk or back window to tell people (29) _____ they are married. Now comes the last step of the wedding ceremony. As a tradition, the bride and the groom (30) _____ run to the car under a shower of rice thrown by the wedding guests. When the couple drives away from the church, friends often chase them in cars, honking(鸣喇叭) and drawing attention to them. And then the couple go on their honeymoon.Section BDirections: Fill in each blank with a proper word chosen from the box. Each word can be used only once. Note that there is one word more than you need.A. publicB. inadequateC. loweredD. releasedE. disappointmentF. castingG. possibilityH. objectiveI. desperatelyJ. balanceK. comparedWhy Aren’t Women Happier?Why aren‟t women happier these days?That‟s the question raised by a thought-provoking study, The Paradox of Declining Female Happiness, __31__ last month. The research showed that over the past 35 years women‟s happiness has declined, both __32__ to the past and relative to men even though the lives of women in the US have improved in recent decades by most __33__ measures.The research, by University of Pennsylvania economists Stevenson and Wolfers, and made __34__ by the National Bureau of Economic Research, found the decline in happiness to be widespread among women across a variety of demographic(人口统计的) groups. The researchers, for instance, measured similar declines in happiness among women who were single parents and married parents, “__35__ doubt on the hypothesis(假设) that trends in marriage and divorce, single parenthood or work/family __36__ are at the r oot of the happiness declines among women,” they wrote.One theory for the decline in happiness is that expectations for workplace and general advancement were raised too high by the women‟s movement and women might feel __37__ for not “having it all,” as a Los Angeles Times columnist recently put it.The researchers acknowledge that‟s a __38__:“If the women‟s movement raised women‟s expectations faster than society was able to meet them,” the paper says, “they would be more likely to experience __39__ in their lives.” But they add things could change for the better: “As women‟s expectations move into adjustment with their experiences, this decline in happiness may reverse.”Readers, why do you think women are unhappier than in the past? Do you think that if expectationsfor “having it all” were __40__ to “move into adjustment with experiences,” women might be happier?III. Reading ComprehensionSection ADirections: For each blank in the following passage there are four words or phrases marked A, B, C and D. Fill in each blank with the word or phrase that best fits the context.A Cashless SocietyThere is nothing worse than feeling around in your pocket trying to find some small change to pay for a newspaper or a coffee. So it‟s good to know that new __41__ is making cash -- banknotes and coins -- a thing of the past, turning us into a cashless society.Today, many of us already use credit and debit cards for __42__ transactions(交易) so there‟s no need to carry around huge amounts of money. And now it‟s __43__ to make contactless payments using tap-and-go cards which are regular bankcards but with a built-in chip. The card reader __44__ a radio signal and, when you bring the card close to the reader, the chip picks up the signal to make the payment.__45__money this way or spending on “plastic” -- an informal name for a credit card -- can put you at risk of fraud (诈骗). Criminals try to steal cards, or the information on them, to make __46__ online or in shops, which, as a result, adds too much difficulty to the police‟s detective work. __47__, contactless payment is capped -- in the UK the limit is £30. And, if someone does go on a crazy spending with your card, your bank covers you against the loss. Also, the __48__ of chip and PIN technology has even been helping businesses by cutting the time people spend at the cashier‟s in shops and has led to a(n) __49__ in fraud.But, if getting your bankcard out seems like too much trouble, ther e‟s now a __50__ using wearable technology -- something you can wear that include computer and electronic technologies. Kenneth Cukier, economist and technology expert, says “this is __51__ for people who don‟t want to take their card out of their wallet, or use their phone, or use their watch. People are going to be making more purchases more of the time -- __52__ for small-valued goods.”And, although our mobile phones are another way of making payments, BBC reporter Kate Russell says that when this is __53__ you can use the fingo-pay (指纹支付) system which “reads the unique maps of veins under the surface of your finger.” The trick is remembering which finger you __54__ with in the bank -- that‟s when good old-fashioned cash might save the day! What do you __55__ to use when you buy something?41. A. experiment B. evidence C. technology D. analysis42. A. financial B. equal C. economical D. moderate43. A. definite B. possible C. formal D. legal44. A. work out B. makes out C. gives out D. sends out45. A. Refunding B. Depositing C. Paying D. Withdrawing46. A. bargains B. purchases C. preparations D. troubles47. A. Similarly B. Meanwhile C. Furthermore D. However48. A. introduction B. contact C. cooperation D. extension49. A. rise B. drop C. change D. increase50. A. question B. reason C. concept D. solution51. A. reserved B. provided C. intended D. chosen52. A. particularly B. specially C. simply D. purposefully53. A. inexact B. unnecessary C. impractical D. inconvenient54. A. cancelled B. registered C. tested D. restricted55. A. attempt B. demand C. prefer D. aimSection BDirections: Read the following three passages. Each passage is followed by several questions or unfinished statements. For each of them there are four choices marked A, B, C and D. Choose the one that fits best according to the information given in the passage you have just read.(A)You are checking your emails when you start daydreaming about where to go on your summer holiday. This reminds you to compare the cost of local gyms. Then you suddenly decide to look up some place for your birthday party.You may think you are browsing the Internet in a slightly absent-minded manner. You are, in fact, “wilfing”. According to a survey for a financial website, almost seven in ten Internet users admit to the newly named habit. The study of 2400 people carried out by YouGov found that more than a quarter of Internet users wilf ---- a rough acronym of What Was I Looking For? ---- for two days every month.Pete Cohen, GMTV‟s resident life coach and motivator, said, “Stopping yourself wilfing takes a mixture of planning and willpower. These days there are all manners of website attracting our attention. Internet users need to set themselves a specific surfing goal and a time limit to keep on track.”Shopping in the online activity is most likely to make users wilf. Men are more likely to admit to being wilfers than women. A third of the men questioned said the habit had damaged their relationship with a partner. The good news is that wilfing is a habit people tend to grow out of. Internet users aged 55 or over were three times less likely to wilf than those aged under 25.Jason LIoyed, from ,said, “The Internet was designed to make it easier for people to access the information they need quickly and conveniently. Although people log on with a purpose, they are now being offered so much choice and online distractions that many forget what they are there for, and spend hours aimlessly wilfing instead. It‟s important that people do not allow unnecessary online distractions to get in the way when surfing in the Internet, as it can affect productivity in the workplace and relationship at home.”Are you a wilfer, lost in the Internet?56. The underlined word “acronym” in Para. 2 most probably means ______.A. a phenomenon that makes people daydreamB. a summary of the book “What Was I Looking For?”C. an expression meaning taking people‟s attention awayD. a word composed of the first letters of the words in a phrase57. What is an efficient way to stop wilfing according to the passage?A. Stopping taking a mixture of planning and willpower to keep on track.B. Trying to focus on different subjects at the same time.C. Trying to set a surfing goal and a time limit.D. Logging on the Internet all the time.58. It can be concluded from paragraph 4 that ______.A. men are less likely to be wilfing than womenB. wilfing damages the relationship between partnersC. as you grow older, you‟ll become more and more wilfingD. one third of Internet users will be wilfers lost on the Internet59. What can be called “wilfing” according to the passage?A. You spend hours aimlessly surfing the Internet every day.B. You suddenly decide to look up some information about clothes.C. You are accessing the information you need quickly and conveniently.D. You are browsing some of your emails which haven‟t been checked for months.(B)Shanghai Disneyland: Attractions and TipsWelcome to a never-before-seen world of wonder where you can arouse the magical dream within your heart. This is Shanghai Disneyland, a fun experience filled with creativity, adventure and thrills for Guests of all ages! Set your sights on Enchanted Storybook Castle -- the largest Disney castle on the planet -- and then get ready to explore as you discover 6 unique and unforgettable lands: Mickey Avenue, Gardens of Imagination, Fantasyland, Adventure Isle, Treasure Cove and Tomorrowland.Opening HoursJun -- Sept Monday --Thursday: 09:00-- 21:00 Friday --Sunday: 08:00 --22:00Oct -- Dec Sunday --Friday: 10:00-- 19:00 Saturday: 09:00-- 20:00Ticket BookingVisitors can book tickets on the official website or mobile app of the park or by calling 400-180-0000 / 86-21-31580000.They can also follow the official Wechat account ShangHaiDisneyResort to book a ticket. Of course, tickets can be bought at the entrance, but there may be a long queue. Visitors need to show passports or ID cards to book tickets and enter.Five Things You S houldn’t Miss●TRON Lightcycle Power Run●Pirates of the Caribbean Battle for the SunkenTreasure●“Mickey‟s Storybook Express” Parade●Enchanted Storybook Castle●Broadway-style show The Lion KingSpecial RecommendationThe cartoon characters Judy and Nick in Zootopia, the animated movie whose box office hit $1 billion globally in 2016, will be added to Disney‟s signature “Mickey‟s Storybook Express” Parade, said Robert Iger, the president and CEO of Walt Disney.Things to Remember●Only well-packaged food and water are allowed.●Selfie sticks,large tripods, folding chairs, and large luggage are banned.●Visitors above 16 should not be dressed in cartoon, movie and comic costumes.●Disney Fastpass tickets for free can save you from waiting in a long queue.●Comfortable sneakers are strongly recommended for a long walk during the day.●Animals are not allowed to enter as well, excluding guide dogs.60. It can be inferred from the passage that ______.A. Enchanted Storybook Castle is a must-see sightB. Broadway-style show The Lion King is a 3D movieC. “Mickey‟s Storybook Express” Parade earns $1 billion in 2016D. Pirates of the Caribbean Battle for the Sunken Treasure is an animated movie61. What day is supposed to be the busiest day according to the passage?A. Thursday.B. Friday.C. Saturday.D. Sunday.62. It can be concluded from the last partof the passage that ______.A. blind people are not allowed to visit the landsB. visitors can only eat and drink at certain placesC. cartoon costumes and uncomfortable sneakers are bannedD. Disney Fastpass tickets can help visitors enter the lands fast(C)A group of college students is hoping to place a satellite powered only by water into an orbit(轨道) around the moon.The students are from Cornell University in thestate of New York. They are taking part in acompetition called the Cube Quest Challenge. It is aprogram of NASA, the American space agency. TheCornell team is called the CisLunar Explorers. Theword cislun ar means “between the earth and themoon.”The challenge is simple: to design, build anddeliver “flight-qualified, small satellites.”NASAofficials say the satellites must be able to perform“advanced operations near and beyond the moon.”Ten teams are taking part in the competition. Butthe CisLunar Explorer satellites are different. They are the only ones using water to power their spacecraft.The idea for a water-powered vehicle came from Mason Peck, who works at Cornell University. He once worked as NA SA‟s chief technologist. He has always wanted to use something other than rockets to push spacecraft beyond earth. “A lot of the mass we send into orbit these days is in the form of rockets -- the only way we get anything into space,” he said, in a Cornell press release.“But what if we could use what‟s already there? If we could do that, if we could re-fuel spacecraft while they‟re already in space...”The spacecraft is shaped like the English letter L. It measures about 30 centimeters in length, and the two pieces are connected. Water is stored in the lower part of the satellite. The sun will separate the water into two elements: hydrogen and oxygen. When one combines hydrogen and oxygen with a spark (火花), an explosion results. This provides a forward movement, known as thrust.The CisLunar Explorer team has an unusual way to guide its spacecraft. The idea is to copy how old-time sailors used the moon, sun and stars to fix their position on the oceans. The satellite is equippedwith cameras. The cameras will take pictures of the sun, the earth and the moon and compare their positions and their sizes. Based on where the sun, moon and earth are at any given time, the CisLunar Explorers will do the mathematics to find their position.The competition is being held in four parts. The Cornell team has been among the top three competitors during parts one and two. The winners of the third stage will be announced in about a month. The final three winners will be announced in early 2017. They will get to ride on NASA‟s space launch system in early 2018.63. The essential part of the competition “the Cube Quest Challenge” is ______.A. to launch a satellite to take awatery flight to the moonB. to design, build and deliver a small and flight-qualifiedsatelliteC.to place a satellite powered only by water into an orbit around the moonD. to make the satelliteperform advanced operations near and beyond the moon64. What does Mason Peck want to do at Cornell Universityaccording to the passage?A. To stop using rockets for the sake of safety.B. To use something already in space as power.C. To try using water in space to push spacecraft.D. To design a water-powered vehicle to push spacecraft.65. It can be inferred from the passage that ______.A. there is a lot of rubbish of rockets and satellites in the orbit these daysB. a water-powered satellite will soon be sent into the orbit around the moonC. the explosion of the combination of hydrogen and oxygen provides powerD. the team members of the CisLunar Explorers are the students of Mason Peck66. What would be the best title of the passage?A. A Spacecraft Powered by WaterB. A Water-Powered Flight to the MoonC. A Competition for Water-Powered SatelliteD. A Design of Water-Powered Space JourneySection CDirections: Read the passage carefully. Fill in each blank with a proper sentence given in the box. Each sentence can be used only once. Note that there are two more sentences than you need.A. He found the bacterium had a similar effect on the mice as an anti-depressive drug mightB.Soil bacteria not only benefit people but also benefit animalsC. Gardening can also be used as a way of treating addictionD. It‟s no wonder some of us turn to gar dening as a form of therapyE. Alcohol can make people behave peculiarly and dangerously in gardeningF. Some experts actually believe that getting outside to dig and plant things acts as a “naturalexcitement”The Good of GardeningDo you have a hobby that helps you relax and unwind? For some people, there is no better way to relieve pressure than spending time in the garden. This small private area of green space can be their place of calm.__67__. A survey conducted by the Royal Horticultural Society, found that 82% of people in the UK said that gardening makes them happier. It also found that 70% of them, given the choice, would prefer to spend their working day in the garden with just 9% opting for an office.For those with green fingers, the pleasure of gardening comes from getting out in the fresh air, in all weathers and communing with nature -- even if there are a few too many worms! It can also be seen as a sort of digital-detox -- time away from technology. __68__.Dr Christopher Lowry, a neuroscientist at the University of Colorado, injected a bacterium commonly found in soil into mice to see what affection this would have on them. __69__. When we dig in soil we absorb this bacterium through our lungs or cuts in our skin, so Dr Lowry concluded that since the mice seemed happier when treated with soil bacteria, it‟s likely we would be, too.__70__. There‟s evidence that recovering alcoholics who have been given the opportunity to plant, grow, and even sell their produce, have managed to stop their addictive habits. Scot Stephenson, for example, got dismissed from school and started a vocational qualification in gardening. He says, “I got my NVQ level 2 which is my first qualification and enjoyed it ever since.”Whatever the reason, there are many therapeutic benefits to getting your hands dirty, doing some physical hard work and then watching your garden grow. Does this sound like your idea of fun?IV. Summary WritingDirections: Read the following passage. Summarize the main idea and the main point(s) of the passage in no more than 60 words. Use your own words as far as possible.Are You Ready for Your Exam?So, it‟s the exam time again -- have you done the necessary work to get good marks? Sleeping with the textbook under the pillow(枕头) in the hope that knowledge will be magically absorbed into your brain as you sleep doesn‟t work. The best strategy is to space your practice out, rather th an cram(死记硬背) it all together. It means hit the books early!In an article in the British newspaper The Guardian, Tom Stafford, a lecturer in psychology at the University of Sheffield, UK, advises: “If you organi ze five hours of study into one hour a day, you‟ll remember more than if you study for five hours on one day.”Don‟t rely on memory alone -- get pen and paper and start working. Students who can test themselves in advance will be better at getting back material from their memory and learn that material in the long run. John Dunlosky, Professor of Psychology at Kent State University in the US, suggests that “you start by reading a textbook using your favourite highlighter(荧光笔) and favourite colours, but then you go back and make flashcards of all the critical concepts and instead of just rereading those, you basically try to test yourselves on them.”Good revision should give you confidence, but if you are still anxious, there‟s no harm in indulging(放任) in a personal routine. In Japan, it seems to be a tradition for students to eat Katsudon before a test. This is a warm bowl of rice topped with egg and a deep-fried pork cutlet. The name of the dish reminds people of the word …katsu‟, meaning …winning‟.For some students in South Korea, the key to success is not washing their hair before sitting an exam because they believe they could wash all the knowledge out of their head. And in different parts of the world there are always those who swear by their …lucky underwear‟.The bottom line is that you need to study, sleep well on the eve of the test, eat a nutritious meal, drink plenty of water and believe that your efforts will pay off. Good luck in your exam!（请将答案写在答题纸上）第II 卷（共40分）I. TranslationDirections: Translate the following sentences into English, using the words given in the brackets.1、干嘛不去看场电影放松一下自己？（Why ）2、全市所有的公园都应对市民免费开放。
- 1、下载文档前请自行甄别文档内容的完整性，平台不提供额外的编辑、内容补充、找答案等附加服务。
- 2、"仅部分预览"的文档,不可在线预览部分如存在完整性等问题,可反馈申请退款(可完整预览的文档不适用该条件!)。
- 3、如文档侵犯您的权益，请联系客服反馈,我们会尽快为您处理(人工客服工作时间：9:00-18:30)。
虹口区2015学年度第一学期期终教学质量监控测试高三物理试卷2016.1 本试卷共11页，满分150分，考试时间120分钟。
本卷g均取10m/s2。
考生注意：1．答卷前，考生务必在试卷和答题纸上用蓝色或黑色的钢笔或圆珠笔清楚填写学校、班级、姓名、学号，并用2B铅笔在答题纸上正确涂写学号。
2．第一、二、三大题必须用2B铅笔涂写在答题纸上相应区域内与试卷题号对应的位置。
第四、五、六大题必须用黑色钢笔或圆珠笔填写在答题纸上对应的位置（作图可用铅笔）。
3．第30、31、32、33题要求写出必要的文字说明、方程式和重要的演算步骤。
只写出最后答案，而未写出主要演算过程的，不能得分。
有关物理量的数值计算问题，答案中必须明确写出数值和单位。
一．单项选择题（共16分，每小题2分。
每小题只有一个正确选项。
）1．下列单位中，属于国际单位制中基本单位的是（）（A）韦伯（B）牛顿（C）安培（D）特斯拉2．物理学中，力的分解、平均速度、总电阻所蕴含的共同的科学思想是（）（A）比值定义（B）等效替代（C）控制变量（D）理想模型3．把一根长直导线平行地放在小磁针的正上方，当导线中有电流通过时，磁针会发生偏转。
首先观察到这个实验现象的物理学家是（）（A）奥斯特（B）法拉第（C）麦克斯韦（D）伽利略4．美国科学家Willard S.Boyle与George E.Snith因电荷耦合器件（CCD）的重要发明荣获2009年度诺贝尔物理学奖。
CCD是将光学量转变成电学量的传感器，下列器件可作为光传感器的是（ ） （A ）干电池（B ）光敏电阻（C ）与非门（D ）发光二极管5．关于静电的利用和防范，以下说法中正确的是（ ） （A ）静电复印是防范静电的（B ）为了防止静电积聚，飞机起落架的轮胎必须用绝缘橡胶制成（C ）油罐车行驶途中车尾有一条铁链拖在地上，可以避免产生电火花引起的爆炸 （D ）手术室的医生和护士都要穿戴绝缘性能良好的化纤制品，可以防止麻醉药的燃烧6．弹簧振子做简谐运动，周期为T ，则变化周期为2T的物理量是（ ） （A ）位移（B ）振幅（C ）动能（D ）加速度7．如图所示，质量m A ＞m B 的两个物体A 、B 叠放在一起，在竖直向上的推力F 作用下沿竖直粗糙墙面向上匀速运动。
若撤去F 的作用，则物体A 、B 沿墙面继续向上运动的过程中，物体B 的受力示意图正确的是（ ）8．在解一道由字母表达结果的计算题中，一位同学解得速度的表达式为v ＝2m F （s1＋s2），其中F 表示力，s 1、s 2表示运动位移，m 表示质量。
用单位制的方法检查，这个结果（ ） （A ）可能是正确的 （B ）一定是错误的（C ）如果用国际单位制，结果可能正确 （D ）如果用其它单位制，结果可能正确二．单项选择题（共24分，每小题3分。
每小题只有一个正确选项。
）9．图示为α粒子（氦的原子核）被重金属原子核散射的运动轨迹，M、N、P、Q是轨迹上的四个位置，在散射过程中可以认为重金属原子核静止不动。
图中标出α粒子在各位置加速度的方向正确的是（）（A）M点（B）N点（C）P点（D）Q点10．如图所示，E为内阻不能忽略的电池，R1、R2、R3为定值电阻，S1、S2为开关，电压表和电流表均为理想电表。
初始时S1与S2均闭合，现将S2断开，则（）（A）电压表的示数变大，电流表的示数变大（B）电压表的示数变大，电流表的示数变小（C）电压表的示数变小，电流表的示数变小（D）电压表的示数变小，电流表的示数变大11．如图所示，直角形导线abc通以恒定电流I，两段导线的长度分别为3L和4L，导线处于垂直于导线平面的磁感应强度为B的匀强磁场中，则导线受到磁场力的合力为（）（A）3BIL，方向b→c（B）4BIL，方向b→a（C）7BIL，方向垂直于ac连线斜向上（D）5BIL，方向垂直于ac连线斜向上12．如图所示，轻质竖直悬线的上端固定在C点，下端与匀质硬棒OA上的B点连接，棒的O端用铰链固定在墙上，棒处于水平状态，AB＝3OB，BC＝OB。
改变悬线长度，使B点逐渐右移，并保持棒处于水平状态，则悬线的拉力（）（A）逐渐减小（B）逐渐增大（C ）先减小后增大 （D ）先增大后减小13．一质点以初速度v 0沿直线做加速运动，速度随位移变化的v-s 图像如图所示，则下列判断中正确的是（ ） （A ）质点做匀加速运动 （B ）速度与位移成正比 （C ）质点的加速度逐渐增大（D ）质点所受合外力的功率可能不变14．图（甲）是一列简谐横波在t ＝4.5s 时的波形图，已知b 位置的质点比a 位置的质点晚0.5s 起振。
则图（乙）所示振动图像对应的质点可能位于（ ）（A ）a 、b 两个质点之间（B ）b 、c 两个质点之间（C ）c 、d 两个质点之间（D ）d 、e 两个质点之间15．相距为d 、质量分别为2m 和m 的两颗恒星A 和B 组成双星系统，在万有引力作用下各自绕它们连线上的某一固定点，在同一平面内做匀速圆周运动。
设两颗恒星的转动半径分别为R A 、R B ，速度大小分别为v A 、v B ，动能分别为E kA 、E kB ，引力常量为G ，则下列关系中正确的是（ ） （A ）R A ＝2R B （B ）v A ＝2v B （C ）E kA ＝E kB（D ）E kA ＋E kB ＝d Gm216．如图（甲）所示，半径为R 的均匀带电圆形平板，单位面积带电量为q ，其轴线上距离圆心为x 的任意一点A 的电场强度E ＝2πkq （1－ x ），方向沿x 轴（其中k 为静电力常量）。
如图（乙）所示，现有一块单位面积带电量为q0的无限大均匀带电平板，其周围电场可以看做是匀强电场，若从平板的中间挖去一半径为r的圆板，则圆孔轴线上距离圆心为x的B 点的电场强度为（）1（A）2πkq0x（B）2πkq0x（C）2πkq0rr（D）2πkq0x三．多项选择题（共16分，每小题4分。
每小题有二个或三个正确选项。
全选对的，得4分；选对但不全的，得2分；有选错或不答的，得0分。
）17．如图所示，在直角坐标系y轴上关于原点对称的A、B两点固定两个等量的电荷，若无穷远处的电势为零，则关于轴上各点电势随x坐标变化的图线可能的是（）18．如图所示，水平放置的光滑绝缘直杆上套有A、B、C三个金属铝环，B环连接在图示的电路中。
闭合电键S的瞬间（）（A）A环向左滑动（B）C环向左滑动（C）A环有向外扩展的趋势（D）C环有向内收缩的趋势19．如图所示，某均匀介质中有两列简谐横波A和B同时沿x轴正方向传播足够长的时间，在t＝0时刻两列波的波峰正好在x＝0处重合，则下列说法中正确的是（）（A）x＝0处质点的振动始终加强（B）两列波的频率之比为f A∶f B＝5∶3（C）t＝0时刻一定存在振动位移y＝－20cm的质点（D）t＝0时刻两列波另一波峰重合处的最近坐标为x＝7.5m20．如图（甲）所示的电路中，将滑动变阻器R2的滑动片由a端向b端移动，用两个电表分别测量电压和电流，得到部分U-I关系图像如图（乙）所示，则（）（A）电源的电动势为6V（B）滑动变阻器的总阻值为20Ω（C）当电压表示数为5.0V时，电源效率最高（D）当电压表示数为5.0V时，R2消耗的总功率最大四．填空题（共20分，每小题4分。
）本大题中第22题为分叉题，分A、B两类，考生可任选一类答题。
若两类试题均做，一律按A类题计分。
21．如图所示为某辆汽车用于改变车速的变速箱操纵杆，也叫排挡。
将排挡推到不同位置，可获得不同的行驶速度，已知1～5挡速度逐渐增大，R是倒车挡。
该车上坡时，需要________________的牵引力（选填“较小”、“较大”），驾驶员在保持发动机输出功率不变的情况下，应当将变速杆由原来的“4挡”推至________________挡。
22A、22B选做一题22（A）．质量为40kg的某同学推着质量为10kg的冰车，在水平冰面上以2.0m/s的速度一起向前滑行，不计冰面摩擦。
若该同学突然以对地5.0m/s的速度将冰车向前推出，则他的速度变为__________m/s，此过程他对冰车所做的功为_________J。
22．（B）．若“天宫1号”宇宙飞船的质量为m，距离地面的高度h＝R（其中R为地球半径）。
假设飞船绕地球做匀速圆周运动，地球表面处的重力加速度为g，引力常量为G，则“天宫1号”飞船运动的加速度大小为____________，旋转周期为______________。
23．如图所示，ABC为固定在竖直平面内的轨道，AB段水平且粗糙程度均匀，BC段为半径R＝2.5m、圆心角为θ的光滑圆弧。
穿在轨道上的小球可视为质点，在A处获得水平向左的初始速度v A＝1.0m/s，经过s＝0.25m的位移到达B点，速度减为v B＝0.2m/s，则球与AB之间的动摩擦因数μ＝____________。
从小球经过B点开始计时，再需t＝___________s的时间，可以第二次经过B点。
24．如图所示，摩托车做腾跃特技表演，在水平道路上以初始动能E k0冲上高为h、顶部水平的高台，然后从高台水平飞出。
若摩托车始终以额定功率P 0行驶，经时间t 从坡底到达坡顶，人和车的总质量为m ，忽略空气阻力的影响，则摩托车到达坡顶时的动能E k ＝_________________。
若改变高台的高度h ，初始动能仍为E k0，离开高台前牵引力做功为W ，则h 为_________________时，摩托车飞出的水平距离最远。
25．足够长的光滑平行金属导轨竖直放置，匀强磁场垂直纸面向外，相同规格的灯泡L 1、L 2均标有“3V ，3W ”的字样，连接成图（甲）所示的电路。
电键S 断开时，将一根电阻不计、质量m ＝0.2kg 的金属棒从导轨上由静止释放，棒与导轨接触良好，导轨电阻不计，计算机采集较长过程的数据并绘出完整的U -I 图像如图（乙）所示，根据图像可以推知金属棒所能达到的最大速度v m ＝_______________m/s 。
若仅改变金属棒的质量，闭合电键S ，重新操作，为使金属棒达到最大速度后两只灯泡能够正常发光，金属棒的质量应调整为_______________kg 。
五．实验题（共24分）26．（4分）图（甲）所示为“用DIS 研究回路中感应电动势大小与磁通量变化快慢的关系”的实验装置，采集数据得到E -Δt 1图线如图（乙）所示。
（1）本次实验中，需要控制____________________________________不变。
（2）实验时若其它条件不变，仅增大导轨的倾角，则E -Δt 1图线的斜率_________________（选填“变大”、“变小”或“不变”）。