(完整word版)八年级上学期物理期末测试题含答案.pdf

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1、初中物理中考复习资料八年级第一学期期末物理试卷学校:_ 姓名：_班级：_考号：_ 一、单选题(本大题共10 小题，共 30.0 分)1.用 图 所 示 的 刻 度 尺 来 测 金 属 块 的 长 度，下 列 测 量 结 果 正 确 的 是()A.8.60cm B.1.60cm C.1.6cm D.以上读数都不正确2.下列说法正确的是()A.房屋、树木随地球转动不属于机械运动B.对同一物体选用不同的参照物，其运动情况一定不相同C.在匀速直线运动中速度与路程成正比，与时间成反比D.用也可以表示物体运动的快慢，且越小，表示运动越快3.某同学在上学去的路上，用 0.8m/s 的速度走完前一半路程，又用

2、 1.2m/s 的速度走完后一半路程，则他在整个路程中的平均速度是()A.0.8m/s B.1.0m/s C.0.96m/s D.1.2m/s 4.“镜中花，水中月”的现象说明了()A.光的传播速度太快B.光发生了反射现象C.光发生了折射现象D.光在同一种物质中沿直线传播5.物体在凸透镜前20cm 处，可以得到倒立放大的像，现将物体向透镜移近10cm 后，得到的像是()A.倒立放大的实像B.倒立等大的实像C.正立放大的虚像D.条件不足，无法判定6.铝的密度是2.7 10 3kg/m 3，它的物理意义是()A.每立方米的铝的密度是2.7 10 3kg/m 3B.每立方米的铝的质量是2.7 10

3、3kg/m 3C.每立方米的铝的质量是2.7 10 3kg D.2.7 10 3m 3的铝的质量是lkg 7.体积和质量都相等的铁球、铜球和铅球，已知 铁 铜 铅，则下列说法中正确的是()A.若铁球是实心的，则铜球和铅球一定是空心的B.若铜球是空心的，则铁球和铅球一定是空心的精品资料-欢迎下载-欢迎下载 名师归纳-第 1 页，共 12 页 -初中物理中考复习资料C.若铅球是空心的，则铁球和铜球一定是空心的D.三个球都可以做成空心的，空心部分体积最大的是铁球8.检查视力时，人与视力表的距离要求为5m，由于医务室房间太小，医生首先将视力表贴在一面墙上，然后在对面墙上正对着视力表挂一大平面镜，视力表

4、到镜子的距离为3m，检查视力时()A.人应面对镜而坐，人与镜的距离为2m B.人应面对镜而坐，人与镜的距离为2.5m C.人应面对视力表而坐，人与视力表的距离为 2m D.人应面对视力表而坐，人与视力表的距离为 3m 9.一种新型保险柜安装有声纹锁，只有主人说出事先设定的暗语才能打开，别人即使说出暗语也打不开锁这种声纹锁辨别主人声音的依据是()A.音调B.音色C.响度D.声速10.如图是分别表示甲、乙、丙、丁四种物质熔化或凝固规律的图线，下列说法正确的是()A.甲种物质是晶体，图线表示的是凝固的过程B.乙种物质是非晶体，图线表示的是熔化的过程C.丙种物质是非晶体，图线表示的是凝固的过程D.丁种

5、物质是晶体，图线表示的是凝固的过程二、填空题(本大题共12 小题，共 29.0 分)11.在下列数据后面填上合适的单位：(1)一张纸的厚度约为75_；(2)一辆满载货物的卡车匀速行驶的速度约为38_12.甲同学把耳朵贴在长钢管的一端，乙同学在长钢管的另一端敲击一下，甲同学听到了两次响声，这两次呼响声是声音分别通过、传入甲同学耳朵的13.站在行驶的火车上的乘客看到树木向东运动，他是以为参照物的；若以地面为参照物，火车正在向运动14.日食现象是由于光的形成的；站在平静的池塘旁，可看到岸边大树的倒影和水中游的鱼，前者是光的现象，后者是光的现象，所看到的都是 (填“实像”或“虚像”)15.如图所示，“

6、40”表示，在遵守交通规则的前提下，从看到这两个标志牌的地方到达“西大桥”，匀速行驶的汽车最快精品资料-欢迎下载-欢迎下载 名师归纳-第 2 页，共 12 页 -文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9

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8、7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B1

9、0文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6

10、V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J

11、1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6

12、B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10文档编码:CC3J3X6V9Z3 HR7J2E4J1U7 ZR5M4U6X6B10初中物理中考复习资料需 min16.一个人站在竖直放置的平面镜前4m 处，则像距离人 m远；如果此人以

13、1m/s的速度靠近镜面，则1.5s 后，人和像的距离为 m 17.一物体做直线运动，前2s 内通过的路程是40m，后 2s 内的通过路程是20m，这个物体后 2s 内的平均速度是，4s 内的平均速度是18.一块金属的体积是2.5m 3，质量是6750kg，则它的密度是，这种金属可能是；若将金属块截去，剩余部分的密度是19.空瓶质量为5kg，瓶内装满水后为17kg，若换上酒精，整个瓶子可装的酒精比装水少 kg 20.一束光线与界面成30 角从 A 物质射到 B物质，反射光线恰好与折射光线垂直，则入射角为，折射角为21.在烧瓶里放少量的碘，并用酒精灯对烧杯微微加热，过一会儿停止加热在此实验中可以看

14、到，固态的碘没有熔化，而直接变成紫色的碘蒸气，这种现象叫停止加热后，碘的蒸气没有液化，而直接变成固态的碘，这种现象叫22.用质量相等的0的水和0的冰来冷却物体，的冷却效果较好因为它在过程中要热量三、作图题(本大题共1 小题，共6.0 分)23.在图 1、2、中完成光路，填上适当的透镜如图 3 是光源 S经平面镜反射的两条光线，请画图确定光源位置，并完成光路四、实验探究题(本大题共 1 小题，共 4.0 分)24.如图所示是测量小车沿斜面下滑的平均速度的实验(1)该实验目的是练习用测平均速度(2)该实验原理是(3)实验时观察到，小车沿斜面顶端下滑到斜面底端的运动是直线运动(选填“匀速”或“变速”

15、)(4)实验中测得路程s 1上的平均速度为v 1，路程 s 2上的平均速度为v 2，路程 s 3上的平均速度为 v 3那么，v 1、v 2、v 3的大小关系是(选填、=)五、填空题(本大题共2 小题，共9.0 分)25.如图所示，用尺子作乐器探究决定音调高低的因素，把钢尺紧按在桌面上，一端伸出桌边，拨动钢尺，听它振动发出的声音，同时注意钢尺振动的快慢，改变钢尺伸出桌边的长度，再次拨动，使钢尺每次的振动幅度大致相同精品资料-欢迎下载-欢迎下载 名师归纳-第 3 页，共 12 页 -文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G

16、4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:C

17、A8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3

18、S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO

19、10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10

20、R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8

21、HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3

22、U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7初中物理中考复习资料实验发现：尺子伸出桌面的长度越长振动越，发出声音的音调越；尺子伸出桌面的

23、长度越短振动越，发出声音的音调越由此可得出结论：音调的高低与有关26.美术课上同学们用橡皮泥捏动物模型时，想知道橡皮泥的密度有多大课后，他们在实验室选择了天平、量筒、水和细线进行了实验操作(1)合理的操作顺序是(填序号)：(2)由图可知：橡皮泥的质量m=g；橡皮泥的体积V=cm 3；橡皮泥的密度=六、简答题(本大题共1 小题，共5.0 分)27.在北方的冬天，为了防止菜冻坏，就在菜窖里放几桶水，为什么？七、计算题(本大题共2 小题，共17.0 分)28.一辆汽车在平直公路上匀速行驶，一人站在汽车前方某处汽车第一次鸣笛的声音经 3s 被他听到；过20s 后汽车再次鸣笛，经2s 被他听到若声速为3

24、40m/s，求汽车的速度29.将一钢球放入盛有100mL 水的量筒中，水面上升到160mL 处又用天平称出该球质量为234g，此钢球是空心的还是实心的？若为空心的，在空心部分注满煤油，那么钢球的总质量为多少？(钢(铁)=7.9 10 3kg/m 3)精品资料-欢迎下载-欢迎下载 名师归纳-第 4 页，共 12 页 -文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H

25、3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文

26、档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U

27、7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R

28、10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4

29、I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10

30、G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:

31、CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7初中物理中考复习资料八年级第一学期期末物理试卷【答案】1.B 2.D 3.C 4.B 5.C 6.C 7.A 8.A 9.B 10.B 11.m;km/h 12.钢管;空气13.车;西14.在均匀介质中沿直线传播;反射;折射;虚像15.从此地到西大桥限速40

32、km/h;12 16.8;5 17.10m/s;15m/s 18.2.7 10 3kg/m 3;铝;2.7 10 3kg/m 319.2.4 20.60;30 21.升华;凝华22.0的冰;熔化;吸收23.(1)图中入射光线经凸透镜折射后，折射光线更加远离主光轴，即透镜有发散作用，所以是凹透镜(2)过焦点的光线经凸透镜折射后折射光线平行于主光轴；平行于主光轴的光线经凸透镜折射后折射光线通过焦点(3)先将两条反射光线AB、CD反向延长交于一点S，在通过平面镜作出S的对称点S，即为发光点的位置，并连接SB、SD画出入射光线，如图所示：故答案为：24.(1)斜面小车(2)v=(3)变速(4)v 3v

33、 1v 225.慢;低;快;高;频率26.(1)C、A、B；(2)13.4；10；1.34g/cm 327.答：因为北方的冬天气温低，在菜窖里放几桶水就是利用凝固时放热，使菜窖内温度不致太低，菜不致冻坏所以就在菜窖里放几桶水28.解：首先作图如下：人站在 A处，在 B处第一次鸣笛，在C处第二次鸣笛S BA=V 声3s；S BC=V 车20s；精品资料-欢迎下载-欢迎下载 名师归纳-第 5 页，共 12 页 -文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:C

34、A8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3

35、S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO

36、10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10

37、R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8

38、HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3

39、U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档

40、编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7初中物理中考复习资料S AC=V 声2s；S AB=S BC+S AC；则：V 声3s=V 车20s+V 声2s V 车=17m/s答：汽车的速度为17m/s29.

41、已知：V 1=100mL=100cm 3，V 2=160mL=160cm 3，m 钢=234g，铁=7.910 3kg/m 3=7.9g/cm 3，煤油=0.810 3kg/m 3=0.8g/cm 3求：判断钢球是否空心，在空心部分注满煤油时钢球的总质量m 解：(1)根据=可得：实心钢球的体积V 球=29.6cm 3，该球的实际体积V=V 2-V 1=160cm 3-100cm 3=60cm 329.6cm 3，所以该钢球是空心的；(2)空心部分的体积为：V 空=V 球-V 钢=60cm 3-29.6cm 3=30.4cm 3，空心部分注满煤油时的质量m 煤油=煤油V 空=0.8g/cm 33

42、0.4cm 3=24.32g，钢球的总质量m=m 球+m 煤油=234g+24.32g=258.32g 答：此 钢 球 是 空 心 的，在 空 心 部 分 注 满 煤 油 时 钢 球 的 总 质 量 约 为258.32g【解析】1.试题分析：刻度尺在测量之前，要观察其量程、分度值和零刻度线如果零刻度线发生磨损，可以从某一个完整刻度线开始测量读数时，要估读到分度值的下一位根据图示，本刻度尺的分度值是0.1cm，金属块左端对准的刻度是7.00cm，右端读数是8.60cm；所以金属块的实际长度是：8.60cm-7.00cm=1.60cm；故选 B2.试题分析：一个物体相对于其它物体的位置变化都叫做机

43、械运动；一切物体都可以作为参照物，参照物一旦确定，则假定他不动，选择的参照物不同，得出的结论可能相同，也可能不同；匀速直线运动有两个特点，一是快慢不变，二是经过的路线是直线；根据速度公式可理解 t/s的意义房屋、树木随地球转动都属于机械运动，故A错误；对同一物体选用不同的参照物，其运动情况可能相同，也可能不同，故B错误；在匀速直线运动中速度保持不变，故C错误；根据速度公式V=可知，=，越小说明 V越大，故D正确故选 D3.试题分析：根据速度公式先算出前半程用的时间，再算出后半程用的时间，根据速度公精品资料-欢迎下载-欢迎下载 名师归纳-第 6 页，共 12 页 -文档编码:CA8H3U10G4

44、B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA

45、8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S

46、7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO1

47、0U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R

48、9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 H

49、K4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U

50、10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7文档编码:CA8H3U10G4B8 HK4I5H10R9R10 ZO10U7Z2B3S7初中物