2021年沪科版八年级物理上期期末试卷有答案.pdf
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2021年沪科版八年级物理上期期末试卷有答案.pdf
沪科版学年上期期末试卷八年级物理一、填空题(每空1 分,共 21 分)1坐在温馨的物理考场,仔细想想:你平时走路的步幅约为50 ,上体育课时你跑 100m所需时间约为 16 (填上合适的物理量单位).2如图 1 所示,刻度尺的分度值为 mm,木块的长度为 cm3上抛的物体最终落回地面是由于受力的缘故,这个力的施力物体是。4放映电影、幻灯的银幕常用粗糙的白布做成,其优点在于,一是利用反射使剧场中各处的观众均能看到画面;二是白布能反射颜色的光,使观众能看到色彩正常的画面。屏幕上艳丽的画面是由红、蓝三种色光合成的,它们被称为光的“三基色”。5如图 2 所示,把一把钢尺压在桌面上,一部分伸出桌面,用手拨动其伸出桌外的一端,轻拨与重拨钢尺,则钢尺发出声音的不同;改变钢尺伸出桌面的长度,则钢尺发出声音的不同(选填“音调”、“响度”、“音色”)。而当尺子振动较慢频率低于HZ 时,所发出的声音人耳听不到。6如图 3 所示,将一根弹簧挂在天花板上,某人用方向相同的两个力作用于弹簧,已知F1F2。观察比较(a)、(b)、(c)三图可知,力可以使物体,且力的作用效果与力的有关。7 一辆正在高速公路上行驶的汽车 其速度表如图 4 所示,指针显示汽车速度为_km/h,合_m/s8如图 5 运动员用头顶回远处飞来的足球,说明力可以改变物体的_,同时他的头被撞得很疼,说明物体间力的作用是_9如图 6 所示,小明在体育馆地面上测量运动鞋底部受到的滑动摩擦力弹簧测力计应沿_方向拉动,并使运动鞋做_直线运动在运动鞋内再放一个重物,运动鞋受到的滑动摩擦力_(变大/不变/变小)图 1 图 2 图 4 图 3(a)F1 F2(b)(c)|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 1 页,共 6 页图 8 二、选择题(每小题 3 分,共 30 分。第 10-17 题每小题只有一个选项符合题目要求,第 18-19题每小题有两个选项符合题目要求,全部选对得3 分,选对但不全得 1 分,有错选的得 0 分)题号10 11 12 13 14 15 16 17 18 19 答案10体育课掷铅球活动后,同学们对“铅球”的制作材料进行讨论,有同学认为“铅球”是铁制的,并从实验室借来磁铁吸一下,“吸一下”这一过程属于科学探究中的A、提问B、猜想C、实验D、得出结论11植树时,要想判断这行树栽得直不直,采用的方法是:人站在第一棵树的前面,如果后面的树都被第一棵树挡住,说明这行树栽直了,这是利用了A光的直线传播B光的反射现象C光的折射现象D光的漫反射现象12下面的质量最接近5107的是A一只足球的质量B一只老母鸡的质量C一个学生的质量D一头大象的质量13某同学在学习“眼球折光系统”一节时,制作了一个眼球模型,如图 7 模型中的凸透镜相当于晶状体,烧瓶的后壁相当于视网膜,烧瓶里放有一种透明液体表示玻璃体,则图示表示的眼球模型和应采取的矫正措施分别是A.远视眼模型,用凸透镜矫正B.近视眼模型,用凹透镜矫正C.近视眼模型,用凸透镜矫正D.远视眼模型,用凹透镜矫正14全世界电视观众均可通过卫星传输的信号在家里收看北京奥运会开幕式盛况,这种卫星称为地球同步通信卫星,这里的“同步”是指卫星相对太阳静止B相对地球静止C相对月球静止D相对火星静止图 7 平行光图 5 图 6|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 2 页,共 6 页文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E915如图 8 所示,用悬挂着的乒乓球接触正在发声的音叉,乒乓球会多次被弹开这个实验是用来探究A声音能否在真空中传播B声音产生的原因C音调是否与频率有关D声音传播是否需要时间16如图 9 所示三个规格相同的杯子里分别装有质量相等的水、盐水和煤油(盐水的密度1.1 103kg/m3,煤油的密度 0.8 103kg/m3)根据杯中液面的位置可以判定A甲杯是水,乙杯是盐水B甲杯是盐水,乙杯是煤油C乙杯是盐水,丙杯是水D乙杯是水,丙杯是煤油17.物体离凸透镜 12cm,在凸透镜另一侧20cm处成一个放大的实像,该凸透镜的焦距是A12cm f 20cm B6cm f 12cm C 6cm f 10cm D20cm f 26cm 18(双选)下列是小明同学观察到人们在生活中的一些行为和措施,其中属于防止噪声污染的是A师傅在用切割机械雕刻精美的石雕时,用棉花团塞住耳朵或戴防声耳罩B小明的邻居在晚上看球赛时,将音响的音量开得很大C某货车司机为了超车,不断地按喇叭D道路两旁架设隔音墙19(双选)如图 10是甲、乙两辆同时从同一地点出发的小车的st 图象,由图象可知A720 秒钟乙车做匀速直线运动B在 05 秒时间内,乙车的速度比甲车的速度大C第 10秒钟时,甲、乙两车速度相同D经过 5 秒钟,甲车通过的路程比乙车小三、作图题(每小题2 分,共 6 分)20如图 11 所示,重 5N 的足球静止在水平地面上,用力的示意图表示出足球受到的支持力。21如图 12 所示,请你画出图中光线从空气斜射至水面上的反射光线和大致的折射光线22在图 13 中填上适当的透镜。图 9 图 10|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 3 页,共 6 页文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9四、实验探究题(每空2 分,共 28 分)23小红同学在做“探究平面镜成像”的实验时,将一块玻璃板竖直架在水平台上,再取两段完全相同的蜡烛 A 和 B,点燃玻璃板前的蜡烛A 进行观察,如图 14,在此实验中。(1)为便于观察,该实验最好在(选填“较明亮”或“较黑暗”)环境中进行;小红选择玻璃板代替镜子的好处是在能观察到A 蜡烛像的同时,也能观察到。(2)所用刻度尺的作用是便于比较像与物到镜面关系。(3)移去后面的蜡烛 B,在其所在位置上放一光屏,则光屏上接收到蜡烛烛焰的像(选填“能”或“不能”),所以平面镜所成的像是像。(选填“实”或“虚”)。(4)小红将蜡烛 A 远离玻璃板,则它的像大小。(选填“变大”或“变小”或“不变”)(5)小红在做此探究实验时,只做了一组数据,你认为小红下一步应该怎样做。A、整理器材,完成实验。B、改变发光的蜡烛到平面镜的距离,再得到几组数据,分析得出结论。24某小组的同学在探究物体所受重力大小与物体质量的关系时,得到实验数据如下表:被测物体木块 1 木块 2 木块 3 钩码 1 钩码 2 钩码 3 物体质量 m(千克)0.1 0.2 0.3 0.1 0.2 0.3 物体重力 G(牛)1.0 2.0 3.0 1.0 2.0 3.0 比值 G/m(牛/千克)10.0 10.0 10.0 10.0 10.0 10.0(1)在实验过程中,需要的测量工具是天平和_;(2)分析表中第 2、3、4 列或 5、6、7 列中重力和质量的相关实验数据,得出的结论是:图 14 图 11 图 12 图 13|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 4 页,共 6 页文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9_ _。(3)进一步综合分析表中数据可知,的比值是个定值,与物质材料种类无关。25小明在实验室测量某种液体的密度。他先将待测液体倒入量筒,如图15甲所示,则待测液体的体积为cm3。接着小明用天平测出空烧杯的质量为20g,然后他将量筒中的液体全部倒入烧杯内,用天平测量烧杯和液体的总质量,天平平衡时的情景如图15 乙所示,则烧杯和待测液体的总质量为g。请你根据以上实验数据计算出待测液体的密度为g/cm3,此密度测量值密度实际值(选填“大于”或“小于”或“等于”)。五、综合应用(第26 题 6 分,第 27 题 9 分,共 15 分)26.高速公路上为了避免汽车发生追尾事故,交通部门在路边设置了距离确认标志牌。从确认牌开始,沿公路分别有50m、100m、200m标志牌。王鸣同学在京沪高速公路上为了估测所乘汽车的速度,他用手表测出汽车从确认牌到200m标志牌的时间为 6s.由此他估测出汽车的平均速度是多少?27.在上海杜莎夫人蜡像馆中,有按照与真人一比一比例制成的篮球明星姚明的蜡像,如图 16所示,这是目前该馆内“最高大”的蜡像已知姚明身高为229cm,体重约为 140kg,其蜡像的平均密度为0.9103kg/m3,人体的平均密度约等于水的密度,g 取 10N/kg,求:(l)姚明的体积大约是多少?(2)姚明蜡像的质量是多少?(3)已知在月球上的重力大约是地球上的六分之一,那如果把蜡像运送到月球上,其所受的重力大约是多少?图 16 图 15|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 5 页,共 6 页文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9八年级物理(参考答案)二、填空题(每空1 分,共 21 分)1、cm、s 2、1、1.85 3、重、地球4、漫、各种、绿5、响度、音调、20 6、发生形变、大小7、90、25 8、运动状态、相互的9、水平、匀速、变大三、选择题(每小题 3 分,共 30 分。第 10-17 题每小题只有一个选项符合题目要求,第 18-19题每小题有两个选项符合题目要求,全部选对得3 分,选对但不全得1 分,有错选的得0 分)10 11 12 13 14 15 16 17 18 19 C A C A B B C C AD BD 四、作图题(每小题2 分,共 6 分)略五、实验探究题(每空2 分,共 28 分)23.(1)较黑暗、蜡烛 B(2)距离(3)不能、虚(4)不变(5)B 24.(1)弹簧测力计(2)重力和质量成正比(3)重力和质量25.20、37、0.85、小于五、综合应用(第26 题 6 分,第 27 题 9 分,共 15 分)26.【解】v=s/t=200m/6s 33.33m/s(或 120km/h)27、【解】(1)v=m人/水=140kg/(1 103kg/m3)=0.14m3(3 分)(2)m蜡=蜡v=0.9 103kg/m3 0.14m3=126kg(3 分)(3)G地=m蜡g=126kg 10N/kg=1260N G月=1/6 G地=1260N/6=210N(3 分)|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 6 页,共 6 页文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 HV1S8U8Z6X10 ZT3J10S3R6E9文档编码:CM6V7X3L4I3 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