2016初中物理知识竞赛冲刺试题(力学).pdf

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1、物理知识竞赛试题(力学部分)一、单一选择题（每小题3 分，共 33 分）题号1 2 3 4 5 6 7 8 9 10 11 答案1摩托车做飞跃障碍物的表演时为了减少向前翻车的危险，下列说法中正确的是：A应该前轮先着地 B.应该后轮先着地C.应该前后轮同时着地 D.哪个车轮先着地与翻车的危险没有关系2.下列有关激光应用的说法中，错误的是：A.利用激光进行室内照明 B.利用激光进行通信B利用激光加工坚硬的材料 D.利用激光进行长距离测距3.从地面上看，通信用的地球同步卫星是静止不动的。它运行一周所用的时间是：A.24 小时 B.23小时 56 分 C.24小时 4分 D.24小时 56 分4.我们

2、能够分辨钢琴和小提琴的声音，这是因为它们发出声音的：A.音调不同 B.音色不同 C.响度不同 D.频率不同5.一艘宇宙飞船关闭发动机后在大气层外绕地球飞行，飞船内可能出现的现象是：A.物体的质量消失 B.物体自由下落的速度变快C.蜡烛正常燃烧D.水滴呈球形漂浮在空气中6山间公路往往环绕山坡，盘山而上，这样可以使上山的汽车：A提高功率 B提高机械效率C减小所需的牵引力 D减小所需的功7在抗洪救灾中，大堤上的许多人都身穿厚厚的“背心”，这种“背心”的主要作用是：A能阻碍热传递，从而可以抵御风寒B跌倒或碰撞时减小其他物体对人体的作用力，起保护作用C不同的背心反射不同颜色的光，便于识别D以上说法都不对

3、8车站上，坐在火车里的乘客从窗口发现有两列火车沿相反的方向运动，由此得出的下列判断中错误的是：A乘客坐的火车和看到的两列火车中一定有两列在沿相反方向运动B乘客坐的火车可能在运动C三列火车可能沿同一方向运动D三列火车中可能有一列是静止的9航天飞机关闭发动机后正在太空中飞行。如果科学家要在其中进行实验，下列哪些操作不能正常进行：A用温度计测温度 B用弹簧秤测力C用天平测质量 D用电子表测时间10有两个鸡蛋，一生一熟，让它们在光滑的水平桌面上以同样的速度同时开始转动：A生鸡蛋很快停止转动，熟鸡蛋转了一会儿才停止B熟鸡蛋很快停止转动，生鸡蛋转了一会儿才停止C两个鸡蛋都很快停止转动D两个鸡蛋都转了一会儿

4、，然后同时停止11有一架飞机沿水平向左做匀速直线运动，每隔 1秒钟从飞机上轻轻释放一小球，当三只小球落下且均未落至地面时，若不计空气阻力，则这三只小球在空中的排列情况应是下图中的哪一个：二、填空（共28 分，每空2 分）1已知空气的密度为1.29 千克/米3，人体的平均密度与水的密度相当。质量为60 千克的人在空气中受到的浮力大约是_牛。2地面上有一条大木杆，抬起A端需用力 300牛，抬起 B端需用力 200牛。这条木杆的_端较粗，整个木杆的重量（所受的重力）为_牛。3如图所示，四个相同的玻璃瓶里装水，水面高度不同。用嘴贴着瓶口吹气，如果能分别吹出“dou（1）”“ruai（2）”“mi（3）

5、”“fa（4）”四个音阶，则与这四个音阶相对应的瓶子的序号是_、_、_、_。4 小明同学放学回家，正碰上刮风下雨，他以18 千米/时的速度由西向东快跑，此时他发现了奇怪的现象，雨滴成竖直下落状态，请你确定，这时刮的是 _风，风速是 _米/秒。5后轮驱动的汽车在平直路面上向前加速行驶时，地面对后轮的摩擦力方向是_，对前轮的摩擦力方向是_。6音乐厅正举行音乐会，男中音在放声高歌，女高音轻声伴唱，又有多种乐器伴奏，这时男中音的 _比女高音的大，而女高音的_比男中音的高。音乐会的声音我们听起来有丰富的立体感，这主要是由于人的听觉具有_效应。三、简答下列各题（共14 分）1、2（4 分）节日里氢气球飘向

6、高空，越来越小，逐渐看不见了。设想，气球最后可能会怎样。根据你所学的物理知识作出预言，并说明理由。文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:

7、CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 H

8、G7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL

9、10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编

10、码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5

11、 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3

12、ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O13.（6 分）要学好物理就要多动手实验。请你列举出用大塑料可乐瓶制成的三种物理实验器具，并简述制作过程及用它所演示的物理现象。四、（10 分）小英设计了一个实验，验证

13、水的内部压强和水深的关系，所用的装置如图所示，增加细管内的砂粒可以改变细管沉入水中的深度。1.指出所需要的测量工具，并用字母表示需要测量的物理量。2.逐条写出实验步骤。3.根据测量的量导出在不同深度处计算压强的公式。4.说明怎样通过实验结果判断水的内部压强是否与水深成正比。五、（10分）公路路边每隔1千米有一个里程碑，标明公路起点到此碑的距离，单位是千米。设计一种方法，利用里程碑和手表测量自行车以中等速度匀速行驶时的速度，并给出计算公式，计算结果以千米小时为单位。为了减少测量中的误差，请你至少提出两点注意事项。六、（6分）在趣味物理表演会上，小明展示了如图所示的蓄水和放水装置。如果原来水箱是空

14、的，注水时水箱中的水位高于哪点时排水口才有水流出？如果原来水箱是满的，放水时水箱中的水位降到哪点时排水口才停止出水？如果进水口不停地向箱中注水，但进水流量较小，使得当出水口有水流出时，进水流量小于出水流量，这种情况下排水口的水流有什么特点？文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5

15、 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3

16、ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文

17、档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5

18、P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q

19、3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O

20、1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1七、（10 分）测得一个

21、24 厘米高压锅的限压阀的质量为0.1 千克，排气孔的内径为3 毫米。如果用它煮水消毒，根据下面水的沸点与压强关系的表格，这个高压锅内的最高温度大约是多少？T/90 95 100 105 110 112 114 116 118 120 122 124 126 128 130 p/Kpa 70 84 101 121 143 154 163 175 187 199 211 226 239 258 270 八(10 分)图 10为一种设计中的牲畜饮水用自动装置。底盖A平时顶住水箱的出水口，一旦饮水槽水位下降，浮子受到的浮力减小，水就从小箱流入饮水槽。设计中水箱水位最高为 60厘米，水箱出水口直径是6

22、厘米，底盖 A及竖杆 B的总质量是 420克，浮子 D的质量是 580克，体积是 2分米3，横杆 C的质量可以忽略。通过计算说明，这个自动装置在水箱蓄满水时不能正常工作。文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1

23、H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W

24、9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V

25、4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6

26、S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I

27、8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K

28、6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1物理应用知识竞赛试题二(力学部分)之答案一 1、B2、A3、B4、B5、D6、C7、D8、A9

29、、C10、A11、C 二 1、0.762、A，5003、丙，乙，甲，丁4、西，55、水平向前，水平向后6、响度（或音量，声音），音调（或频率），双耳三2、有两种可能。一是因为高空中的气体逐渐稀薄，压强降低，气球上升过程中，球内压强大于球外压强，气球不断膨胀，最后“爆炸”破裂。另一是因高空的空气较稀薄，气球上升过程中所受浮力逐渐减小，当浮力等于重力时，气球上升的速度最大然后，浮力小于重力，气球开始向上做减速运动在气球的速度为零之后，又加速下落，浮力逐渐变大，当气球通过浮力等于重力的位置后，浮力大于重力，气球开始作向下的减速运动在气球的速度减为零之后，又开始加速上升如此反复，气球将在浮力等于重力这

30、一特殊位置附近上、下往复运动3制作量杯用实验室已有的量筒定量地向瓶中倒入水，并刻上刻度作液体侧压强实验器在瓶的测壁不同的高度处扎等大的小孔，倒入水后，从水流的情况可以直观地反映液体内部的压强随深度的增大而增大演示喷雾器用细塑料管插入加盖的盛水可乐瓶，用手使劲捏可乐瓶，水会成雾状从细塑料管中喷出四 1需要用的测量工具是直尺；需测量细管的直径D 和细管沉入水中的深度H1，H22实验步骤：测出细管的直径D；在细管中加入少量砂粒，将细管放入盛有水的容器中，平衡后用直尺测出细管沉入水中的深度H1；增加细管中的砂粒，再将细管放入盛有水的容器中，平衡后用直尺测出细管沉入水中的深度H23导出计算压强的公式。平

31、衡时，细管（含砂粒）所受重力G管与所受浮力F浮相等，即G管F浮，又 G管p1S21)2(DpF浮1V水g12)2(HDg 故得p1=1H水g 4同样可证p2=2H水g 所以1212HHpp说明水的内部压强与水深是成正比的五答：在自行车行驶过程中，选定一段比较平整的公路，先记下经过某一里程碑的时刻 t1和里程碑的标数L1，匀速行驶几千米之后，记下经过另一里程碑的时刻t2和里程碑的标数L2（t1和 t2均以秒计），则自行车行驶的速度为：文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1

32、文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M

33、5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8

34、Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3

35、O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H

36、6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9

37、U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4

38、M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1v=3600(L2-L1)/(t2-t1)为了减少误差，要做到：(1)车行速度稳定后才能记录t1和L1。(2)使用有秒针的指针式手表或可以读秒的数字式手表。(3)行驶距离应为几千米，不能太短或太长。六参考解答：注水时水位高于D点才有水流出，水位降到C点才停止出水。排水口会间歇式地放水。评分标准：本题共5分。第一问 2分，第二问 2分，第三问 1分。七、参考解答：(1)(2)(3)把(1)、(2)代入(3)式(4)代入数值p=

39、2.4 105帕(5)从表中查出，锅内温度约为126。评分标准：本题6 分，(1)、(2)、(3)、(4)、(5)式各 1 分，答出锅内温度再给1 分，（温度为126 127 的都给分）。八参考解答：如图13 所示，作用于底盖、竖杆和浮子的力有：向上的浮力：F浮=Vg=10321039.8=19.6（牛）向下的总重力：G总=(0.42+0.58)9.8=9.8（牛）水箱的水向下的压力：F压=ghS=1039.80.63.140.032=16.6（牛）向下的力的总和F向下=G总+F压=26.4 牛 F浮底盖 A将下移，装置无法正常工作。文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 Z

40、L10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档

41、编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P

42、5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3

43、 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1

44、文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M

45、5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1文档编码:CJ6S1H6M5P5 HG7I8W9U8Q3 ZL10K6V4M3O1