2010年九年级中考物理模拟试卷-1(人教版).pdf

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1、20XX年中考模拟考试物理试卷-1(人教版)（满分 70 分，考试时间70 分钟）一、选择题：（每小题2 分，共 16 分）1长春市是一座季节特征分明的城市，雨、雪、雾、霜是自然界描绘的一幅幅壮丽景象，以下分析正确的是（）A春天的雨是熔化现象，形成过程需要放热B夏天的雾是液化现象，形成过程需要放热C秋天的霜是凝固现象，形成过程需要吸热D冬天的雪是汽化现象，形成过程需要吸热2小轿车上大都装有一个指示灯，用它来提醒司机车门是否关好。四个车门中只要有一个车门没关好(相当于一个开关断开)，该指示灯就会发光。图1 为几位同学设计的模拟电路图，你认为最符合上述要求的是（）3很多动物为了适应自身生存的环境，

2、进化出了符合一定物理规律的身体部位。对此，从物理学的角度给出的解释错误的是（）A骆驼的脚掌很大，可以减小压强，从而使其在沙漠中行走自如B壁虎的脚掌上有许多“吸盘，从而利用大气压使其在天花板上不会掉下来C鱼类主要靠鳔的调节作用从而改变自身重力来实现上浮和下沉D大象能听到人耳听不到的次声波，因而在地震引发的海啸灾难中竟无一死亡4科学家探索自然界的秘密，要付出艰辛的努力，十九世纪英国科学家法拉第，经过十年坚持不懈的努力，发现了电磁感应现象，图2 中能表明这一现象的实验是图 1 A B C D 图 2 5下列有关厨房中的物理知识，错误的是 ()A高压锅是利用水的沸点随气压增大而升高的特点制成的B吸油烟

3、机工作是利用流体流速越快的地方压强越小C夏天厨房很热，可以打开冰箱门来降温D在客厅就闻到厨房饭香，说明分子在不停地作无规则运动6在生活和工作中经常进行估测，以下估测最接近实际的是（）A一块橡皮从课桌掉到地上的时间约10s B一个苹果的质量大约在0.5kg1.0kg之间C一个普通中学生登上三楼所做功大约30J D课桌的高度大约在0.7m0.8m 之间7如图 3 所示是一支旅行用的“两面针”牙膏，根据你的观察和生活经验，你认为下列说法错误的是（）A.挤压牙膏时可反映出力能使物体发生形变B.新买的整支牙膏受到的重力是3 克C.牙膏盖上的条纹是为了增大摩擦D.牙膏盖子中间的尖锐物是为了增大压强8有两个

4、电路元件A和B,流过元件的电流与其两端电压的关系如图4（甲）所示把它们串联在电路中，如图4（乙）所示闭合开关S,这时电流表的示数为0.4A,则电源电压和元件 B 的电功率分别是（）A2.0V 0.8 W B2.5V 1.0W C 4.5V 1.0 W D4.5V 1.8W 图 3 文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W1

5、0 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W

6、10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9

7、W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D

8、9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6

9、D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L

10、6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9

11、L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8二、填空题：（每空 1 分，共 12 分）9 汽车是我们十分熟悉的交通工具，也包含丰富的物理知识：（1）水作为汽车发动机的冷却剂，这是因为水的 _较大；发动机把热量传给水使水的内能增加是通过（填“做功”或“热传递”）的方式。（2）公安部门要求小汽车的司机和前排的乘客必须使用安全带，这主要是为了防止紧急刹车时由于 _带来的危害；车的喇叭声是通过_传到人耳的。（3）小型汽车的前风挡玻璃都倾斜

12、放置，从光学的角度是利用原理；为减少交通事故，公路上都设有限速标志，这是因为汽车的速度越大，越大，刹车后前进的路程越长。10 9 月 25 日年我国巨型运载火箭将“神舟七号”载人飞船平地托起，直冲云天：(1)火箭上升时，燃料燃烧释放的化学能转化为飞船的能；火箭用氢作燃料是因为氢具有较大的。(2)“神舟七号”船、箭成功分离前，载人飞船相对运载火箭是的。11举世瞩目的长江三峡工程不仅可发电，还可防洪，可让 150 万公顷良田免于被淹没的威胁，而且可以大大改善长江中上游的通航条件，大坝修的形状是上窄下宽是因为，大坝两边供船只通行的船闸利用了原理。12温度计玻璃泡中装的液体一般用水银、酒精、煤油等，为

13、什么不能用水做测温物质呢？请你写出其中的一个原因：。三、作图与实验题：（每图 2 分，每空1分，共 14 分）13在图 4 中，O为支点，画出使轻质杠杆保持平衡的最小的力F 的示意图（要求保留作图痕迹）。图 4 文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7

14、F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG

15、7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 H

16、G7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5

17、HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5

18、 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P

19、5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1

20、P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B814 AB是蜡烛AB在平面镜中的像，请在图5 中画出入射光线AO的反射光线。15请在图6 中画出足球受到重力的示意图。16小刚同学用一个弹簧测力计、一个金属块、两个相同的烧杯(分别装有一定量的水和酒精)，对浸在液体中的物体所受的浮力进行了探究。图7表示探究过程及有关数据。（1）分析、，说明浮力大小跟有关。（2）分析，说明浮力大小跟液体的密度有关。（3）物体完全浸没在酒精中所受的浮力是 N。（4）根据图中的实验数据，该金属块的密度是 kgm3。(g 取10

21、Nkg，保留一位小数)17小明在“测量小灯泡的电阻”实验中，电源电压保持不变，小灯泡的额定电压为25V。（1）测小灯泡电阻的实验原理是。（2）他将测得的数据及计算结果填在下面的表格中：实验次数物理量1 2 3 4 电压 U/V 2.5 2.0 1.5 1.0 电流 I/A 0.30 0.26 0.22 0.20 电阻 R/7.7 6.8 5.0 小灯泡正常发光时的电阻为_(保留一位小数)。图 6 图 5 图 4 图 7 文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档

22、编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文

23、档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8

24、文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B

25、8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6

26、B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B

27、6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5

28、B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8（3）分析表中的数据发现灯丝的电阻是变化的，原因是 _。这种现象在生活中也有体现，例如家里的白炽灯在刚开灯的瞬间，灯丝_烧断(选填“容易”或“不容易”)。四、计算题：（每小题4 分，共 8 分）18某品牌电热水壶的铭牌上标着如下表所示的数据。请计算

29、：（1）当电热水壶装满水后，从20加热到100，水吸收的热量；（2）在额定电压下，要放出这些热量，电热水壶工作的时间。（不计热量损失）19如图 8 所示，物体重180N，动滑轮重20N，绳重和摩擦不计。在拉力F 的作用下，物体正以 0.1m/s 的速度匀速上升。求：（1）拉力做功的功率；（2）动滑轮的机械效率。五、探究与应用题：（共 20 分）20某同学探究“视力的矫正”原理，如图9所示。他实验观察到如下现象：将眼镜甲放在蜡烛与凸透镜之间，光屏上原来清晰的像变得模糊；只将光屏远离透镜移动时，又能在光屏上看到烛焰清晰的像。图 8 图 9 文档编码:CT10D10S2N1P5 HG7F9L6D9W

30、10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9

31、W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D

32、9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6

33、D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L

34、6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9

35、L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F

36、9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8将另一只眼镜乙放在蜡烛与凸透镜之间，光屏上原来清晰的像也变得模糊了，只将光屏靠近透镜移动时，又可以在光屏上看到烛焰清晰的像。（1）

37、分析实验现象可知：甲乙两个眼镜中，是凸透镜，是凹透镜。（2）在实验现象和中，属于近视眼矫正原理的是。（填写实验现象序号）21.冬冬在做“探究通过导体的电流与电阻的关系”的实验中，采用了图10 所示的电路图。（1）实验过程中，冬冬把电阻R由 5 分别换成了10、20，每次闭合开关后，首先应调节 _，使 _保持不变，然后再记录电流表的示数。电压（V）电阻（V）电流（A）4 5 0.8 10 0.4 20 0.2（2）上表是冬冬测得的三组数据，据此数据可得到的结论是：_ （3）本实验中测量了多组数据，爱思考的冬冬想到：在许多实验中都需要进行多次测量，有的是为了从不同情况中找到普遍规律,有的是为了求平

38、均值以减小误差。你认为下列实验中多次测量的目的与本实验相同的是_(填序号)。测量物体的长度；用伏安法测量定值电阻的阻值；探究重力大小与质量的关系。22小明在“研究二力平衡的实验”中，做了如图11 所示的实验（1）把小车放在尽可能_（填“光滑”或“粗糙”）的水平桌面上，向两端的小盘里加砝码，当两个盘内砝码的质量_（填“相等”或“不等”）时，小车静图 10 图 11 文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10

39、 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W1

40、0 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W

41、10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9

42、W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D

43、9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6

44、D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L

45、6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8止。（2）实验中用小车而不用木块的目的是。（3）保持两盘砝码质量相等，把小车扭转一个角度，使拉力F1和 F2不在同一直线上，观察到小车发生转动，当小车重新恢复到原来的静止状态时，拉力F1，F2作用在同一直线上。由上述实验可得，作用在同一物体上的两个力，如果，方向相反，作用在，这两个力就彼此平衡。23晚上小

46、明在家复习功课准备迎接中考，突然他房间的电灯不亮了，而其他房间的电灯正常亮。由此他确定这盏电灯与其他房间的电灯是联，经检查故障出现在灯丝，则这盏电灯的灯丝出现（填“短路”或“断路”），小明决定换一个新灯泡。他先将控制该灯的开关断开，为了安全，又找来了测电笔检测灯头的两根接线，发现其中一根线使氖管发光，这一现象说明该电灯连成了如图12 （填“A”或“B”）的情况，这种情况（填“容易”或“不容易”）触电。24 在水平木板上铺上粗糙不同的材料,小车自斜面顶端由静止开始滑下,比较小车沿水平面运动的距离.(如图 13)伽略利、牛顿等科学家都做过类似的实验,并在此基础上分析推导出著名的牛顿第一定律.请回答

47、下面的问题:（1）为了得出科学结论.三次实验中小车每次都从斜面上同一位置放下,使小车运动到斜面底端的速度 _(填“相同”或“不相同”)。（2）三次实验中,小车在水平面上受到摩擦力最大的是_次,这说明小车受到摩擦力的大小与接触面的_有关。（3）进一步推理可知,若水平面绝对光滑(小车不受阻力)则小车会在水平面上做_图 12 A B 图 13 文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文

48、档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8

49、文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B

50、8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6B8文档编码:CT10D10S2N1P5 HG7F9L6D9W10 ZF4O9X5B6