2022年初二物理下学期期末练习 .pdf

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1、学习好资料欢迎下载初二物理下学期期末练习（一）一、密度与浮力1、说法中正确的是：（）A2kg棉花质量与 2kg木头质量并不相等B将一铁块加热后压扁了，其质量不变C一块冰熔化成水后，体积变小，其质量变小D宇航员将一块矿石从月球带回地球上，其质量将变小2、身边的物理质量为0.2kg的物体可能是：（）A一只羊B一只蚂蚁C 一台电视机D一个苹果3、同学在测质量时，在天平右盘里无论怎样加减砝码都不能使横梁平衡，下列方法中正确的是：（）A交换左右托盘B旋动平衡螺母C移动游码D同时移动游码和旋动螺母4、酒精的密度为 0.8l03kgm3，它表示的意思是：（）A每立方米酒精的质量是0.8l03kg B每千克酒

2、精的体积是0.8103m3C每立方米酒精的密度是0.8103kgD每立方米酒精的质量是0.8l03kgm3 5、粗细均匀的蜡烛，燃烧掉一半，剩下的半枝与原来的相比：（）A质量不变，体积不变，密度不变B质量变小，体积变小，密度变小C质量不变，体积变小，密度变大D质量变小，体积变小，密度不变4、小明学习了浮力的有关知识后，在家中做了一个小实验，取一个新鲜的鸡蛋放在一杯清水中，鸡蛋沉到水底，欲使鸡蛋上浮，须加入的物质是：（）A 清水 B 酒精 C 食盐 D 食用油6、一只塑料球放在酒精中悬浮，放在水中漂浮，则该球在两种液体中受到的浮力是：（）A、在酒精中受到的浮力大 B、在水中受到的浮力大C 在水中

3、和酒精中受到的浮力一样大 D、无法比较学习好资料欢迎下载7、傍晚，渔民满载着收获的鱼虾，从近海返航，渔船从入海口进入内河，在此过程中渔船（）A.受的浮力变小，船体下沉一些 B.受的浮力不变，船体下沉一些C.受到的浮力不变，船体既不上浮，也不下沉 D.受的浮力变大，船体上浮一些8、商店里的台秤是用来称物体_ 的工具，实验室中的量筒(或量杯)是用来测液体 _ 的工具，密度计是用来测量液体的工具。9、古人称黄河水是“一石水，六斗泥”。实验中学科技实践小组从黄河中取了210-3m3的水，称得质量为2.2kg，由此可知含泥沙的黄河水的密度为 _kg/m3 10、质量是 300g的空心铁球重 _N，当它悬

4、浮在水中不动时，它受到的浮力是 _N。（g 取 10N/kg）11、饺子是大家喜爱的食品，它在水中煮一会儿会漂起来，是因为饺子受热膨胀，体积，受到的浮力，当重力浮力时，饺子就上浮到水面。12、如图 1 所示的是大鱼和小鱼的争论，你认为鱼的说法正确，这是因为两条鱼浸没在同种液体中，它们所受浮力的大小与有关13、在测量盐水密度的实验中，实验所依据的公式是。甲同学用已调好的托盘天平测烧杯和盐水的总质量，操作情况如图 A 所示，其中错误的是：答：_ 图 1 文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD

5、1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码

6、:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10

7、 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2

8、ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档

9、编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H

10、10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O

11、2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3学习好资料欢迎下载_。乙同学操作正确，测得烧杯和盐水的总质量是125g后，将烧杯中的一部分盐水倒入量筒中(图 B)，量筒中盐水的体积为 _mL。测量烧杯和杯中剩余盐水总质量时，所加砝码和游码位置如图C所示，那么量筒中盐水的质量为 _g，由此可算出该盐水的密度为_Kg/m3。14、图 5 是探究“浮力的大小与哪些因素有关”实验的操作，根据此图回答下列问题：(1)若探究浮力大小与物体浸没深度的关系，应选用的操作

12、是 _（填序号）。(2)若选用的操作是，可探究浮力的大小与_的关系。(3)若探究浮力大小与物体排开液体体积的关系，应选用的操作是_（填序号）15、如图所示是探究“阿基米德原理”的实验，则：（1）图甲中木块 A 重 N，图乙中小桶重N；（2）将木块轻轻放入盛满水的溢水杯中，如图丙，木块A 受的浮力为 _N。（3）比较图乙、丁可知，木块排开水的重力为N，由此可得出的结论是 _。图5 0 N A 1 2 3 4 5 甲乙0 N 1 2 3 4 5 B 0 N A 1 2 3 4 5 B 丙0 N 1 2 3 4 5 B 丁文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3

13、S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N

14、8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H

15、5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2

16、E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K

17、9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H

18、4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8

19、F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3学习好资料欢迎下载16、有一辆运油车内装有30m3的石油，从车中取出30cm3，称得质量为 24.5g，问：（1）这种石油的密度是多少？（2）这节油车所装的石油质量是多少？二、压强1、一块砖放在水平地面上，若沿竖直方向切去1/2，（如图）则剩余的砖对地面的()A、压力不变，压强减半B、压力减半，压强减半C、压力减半，压强不变D、压力不变，压

20、强不变2、以下划线部分有利于减小压强的是（）3、下列应用中，属于增大受力面积减小压强的是：（）A切蛋糕的“刀”用很细的钢丝制成B很重的坦克安装履带C注射器的针头很尖D建筑设计时，“非承重墙”使用轻质(密度较小的)材料4、下面做法是为了增大压强的是（）A、书包带做得较宽B、日常生活中用刀切东西C、铁路的钢轨铺在枕木上D、推土机安装履带5、有一种用塑料或橡皮制造的挂衣钩，中间是一个空的“皮碗”，如图 2所示，可以把它按在光滑的墙或玻璃上，在钩上再挂上几件衣服也不会掉下来，这是因为（）A.墙对它有吸力 B.玻璃对它有吸力C.衣钉对墙或玻璃有附着力 D.大气压的作用6、下列现象中，不属于利用大气压强的

21、是（）A自来水笔吸墨水B用吸管吸饮料C活塞式抽水机抽水D高压锅煮饭7、下面说法中正确的是：（）图图 2 文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档

22、编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H

23、10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O

24、2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3

25、文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U

26、6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B

27、4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3学习好资料欢迎下载A马德堡半球实验是用来测量大气压数值的一个实验B托里拆利实验中的玻璃管内的汞面上受到大气压强C同一地点的大气压不是固定不变的D大气压的方向一定

28、是竖直向下的8、如图 2 所示，在水平的两支筷子中间放上两只乒乓球,通过空心塑料管向两球间用力吹气,会发现两只乒乓球：（）A.静止不动B.相互靠近C.相互远离D.向同一方向运动9登山运动员在海拔几千米的高山上煮鸡蛋，水沸腾了很长时间鸡蛋还是不熟，其原因是（）A高山上气温太低B高山上大气压小，水的沸点低C炉火的温度低D水沸腾的时间不够长10、某同学用压强计研究液体内部压强的特点时，将压强计的金属盒放入水中同一深度，并将金属盒朝向不同方向，实验结果如图8 所示。那么，该实验能得出的结论是（）A在水中深度越大，压强越大B不同液体同一深度，压强不相等C在水中同一深度，液体向各个方向的压强相等D在水中同

29、一深度，液体向各个方向的压强不相等11、著名的实验，证明了大气压的存在。著名的实验，测定了大气压的值为 mm 高的水银柱。12、小宇赤足走在布满鹅卵石的海滩上时感到脚底不舒服，这是由于脚底跟地面的接触面积 _，从而使脚底受到的压强 _造成的。13、在世界最深的太平洋马利亚纳海沟，深潜到104m 的海底时，科学家们惊奇地发现一条长约30cm 的扁鱼在海底游动证实了世界最深处也有高度发达的脊椎动物，这条鱼受到的海水压强是Pa(海水的密度 103 103kgm3，g 取 10Nkg)14、如图 4 所示，用手握着两张纸，让纸自然下垂，在两张纸中间向下吹气，这两张纸将相互 _（填“靠近”“分开”），这

30、说明流速越大，气体压强越。图 8 文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2

31、E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K

32、9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H

33、4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8

34、F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD

35、1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP

36、1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3学习好资料欢迎下载15、据报道：一女孩在火车急驶而来时，为躲避火车，便坐在距离铁轨很近的石坎上，并低头捂住耳朵，谁知强大的气流将女孩的长发卷起，将其拖入车底，女孩当场死亡。造成这一事故的原因是由于火车驶近时，靠近火车的地方空气流速

37、(选填“大”或“小”，下同)，气体压强，气体压力差就会将人推向火车，引起事故。16、在探究“压力的作用效果与哪些因素有关”的实验中，小明做了如下图所示的一系列实验，请你从图中，通过分析泡沫塑料的凹陷情况说明你的探究结果，比较图（a）、（b）得出“受力面积一定时，压力越大，压力的作用效果_”比较图（b）、（c）得出“压力一定时，受力面积越小，压力的作用效果_”该实验探究方法是 _。17、海峡西岸，英雄东塑。为纪念民族英雄郑成功诞辰380 周年，在泉州市区大坪山顶修建了郑成功塑像，它的总质量是5105，底坐由长，宽 5m 的花岗岩制成。请问：塑像所受的总重力是多少？塑像对水平地面的压力是多少？地面

38、受到塑像对它的压强是多少？（g10N/）文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V

39、8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:C

40、D1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 H

41、P1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD

42、1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码

43、:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3文档编码:CD1K9N8U6H10 HP1H4H5B4O2 ZD1V8F2E3S3