初二物理期中测试题范文

他身背三角架，手拎仪器箱，每天起早贪黑，晴天一身汗，雨天一身泥，晚上记录复核到深夜geographiclocationYibincityislocatedinbeautifulrichofabundance--SichuanbasinSouthmargin,islocatedinn103°39'-105°20',latitude27°49'-29°16'Zhijian;YibinEastand,Luzhoucity,adjacent;Northandzigongcitydevelopment12thafiveyearsplanningplatformforintoYucityintertracknetworkplanning(2011-2030)nationalandplaceofrelatedplanning,andpolicyYibinCitytourismdevelopmentplanningYibincityeasecityholdblockingspecialplanningYibincityrelatedtabletsdistrictcontrolsexdetailedplanningYibincitypublictrafficdevelopmentplanningYibincitylandusinggeneralplanningYibincityindustrialconcentrateddistrictlayoutplanning1.4planningbackgroundYibincityinsandsRiver,andminjiangRiverandYangtzeRiverofSanjiangintersectionat,isChinafamousofwineare,belongstochuan,andYunnan,andGuizhouthreeprovincecombinedDepartmentarea,knownasYangtzeRiverCity,said,isinpanxi-liupanshuiimportantpartoftheresource-richregion.Inthenewmasterplan,asthenationalhistoricalandculturalcityinYibincity,China,DepartmentofSichuan-Yunnan-Guizhou-basedregionalcenterintheupperreachesCountiesare:Yibin,andJiang'an,andchangningCounty,andGaoPingshanCounty,xingwenjunlian,andGong,and,and,and.2.1-2administrativemapofYibin,Yibincity,endof2014thecity'stotalpopulationof5.5429millionpeople,residentpopulationof825,000peopleintheCenter.2.1.3socialeconomicdevelopmentinYibincity,2014toachieveGDPof144.381billionyuan,anincreaseof8%,keepingthetotalprovince-4thplace;localpublicbudgetincomeof10.56billionyuan,ranking4thplace,above-scaleindustrialaddedvalueof78.716billionyuan,ranking3rdinsocialretailsalesofconsumergoodstotaled56.169billionyuan,ranking4thin24990Yuanofdisposableincomepercapitaofurbanresidents,percapitanetincomeoffarmers9831,Share12314.5:60.0:25.5.Wine-makingindustry,初二物理期中考试一、选择题（每题3分，共54分）1．以下物体长度的估计值，最符合实际值的是（）A.乒乓球的直径为2dmB.一枚一角硬币的直径为2mmC.一张纸的厚度约为1cmD.教室的高约为3.5m2．关于误差，下列说法中正确的是（）A.误差是由于测量方法不正确造成的B.只要测量仪器足够精密，就可以消除误差C.误差只能减小，不能消除D.以上说法都正确3．古诗词《浪淘沙》中写到：“满眼风光多闪烁，看山恰似走来迎”，诗人描述“山是运动的”是选用哪个物体作为参照物（）A.船B.山C.河岸D.树木4.某物体做匀速直线运动，由速度公式tsv可知，物体的（）A．速度大小恒定不变B．速度与路程成正比C．速度与时间成反比D．以上说法都对5．下列说法正确的是（）6.甲、乙两物体同时同地同方向开始做匀速直线运动，甲的速度大于乙的速度，它们的s-t图像为图2所示a、b、c三条图线中的两条，运动5秒甲、乙间的距离大于2米，则（）A.甲的s-t图一定为图线aB.甲的s-t图可能为图线bC.乙的s-t图一定为图线cD.乙的s-t图可能为图线a7．下列关于声的说法中，错误的是（）A.耳聋者用牙齿听声利用了骨传导B.老师讲课的声音通过空气传入人耳A.太空中宇航员能对话，说明声音可在真空中传播B.手在小提琴上不同位置按弦，主要目的是改变响度C.道路两旁的隔音墙是在声源处减弱噪声D.B超检查身体是超声波在医学中的应用261026S/米8t/秒48124abc图2他身背三角架，手拎仪器箱，每天起早贪黑，晴天一身汗，雨天一身泥，晚上记录复核到深夜geographiclocationYibincityislocatedinbeautifulrichofabundance--SichuanbasinSouthmargin,islocatedinn103°39'-105°20',latitude27°49'-29°16'Zhijian;YibinEastand,Luzhoucity,adjacent;Northandzigongcitydevelopment12thafiveyearsplanningplatformforintoYucityintertracknetworkplanning(2011-2030)nationalandplaceofrelatedplanning,andpolicyYibinCitytourismdevelopmentplanningYibincityeasecityholdblockingspecialplanningYibincityrelatedtabletsdistrictcontrolsexdetailedplanningYibincitypublictrafficdevelopmentplanningYibincitylandusinggeneralplanningYibincityindustrialconcentrateddistrictlayoutplanning1.4planningbackgroundYibincityinsandsRiver,andminjiangRiverandYangtzeRiverofSanjiangintersectionat,isChinafamousofwineare,belongstochuan,andYunnan,andGuizhouthreeprovincecombinedDepartmentarea,knownasYangtzeRiverCity,said,isinpanxi-liupanshuiimportantpartoftheresource-richregion.Inthenewmasterplan,asthenationalhistoricalandculturalcityinYibincity,China,DepartmentofSichuan-Yunnan-Guizhou-basedregionalcenterintheupperreachesCountiesare:Yibin,andJiang'an,andchangningCounty,andGaoPingshanCounty,xingwenjunlian,andGong,and,and,and.2.1-2administrativemapofYibin,Yibincity,endof2014thecity'stotalpopulationof5.5429millionpeople,residentpopulationof825,000peopleintheCenter.2.1.3socialeconomicdevelopmentinYibincity,2014toachieveGDPof144.381billionyuan,anincreaseof8%,keepingthetotalprovince-4thplace;localpublicbudgetincomeof10.56billionyuan,ranking4thplace,above-scaleindustrialaddedvalueof78.716billionyuan,ranking3rdinsocialretailsalesofconsumergoodstotaled56.169billionyuan,ranking4thin24990Yuanofdisposableincomepercapitaofurbanresidents,percapitanetincomeoffarmers9831,Share12314.5:60.0:25.5.Wine-makingindustry,C.医生利用超声波能击碎人体内的结石，说明声能传递信息D.上课时，街道上的音乐声属于噪声8.为了探究音调与什么因素有关，小明设计了下面几个实验，如图所示，你认为不能够完成探究目的的是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。这种声纹锁能辨别主人的声音，是根据声音的（）A.音调B.音色C.响度D.声速10.在亚丁湾海域，我国海军护航编队使用“金嗓子”（又名“声波炮”）震慑海盗。它的声波定向发射器外观类似喇叭，能发出145dB以上的高频声波，甚至比喷气式飞机引擎的噪声还要刺耳。根据以上信息，下列说法中错误．．的是()A．这种超声波具有能量B．这种声波的强度是145dBC．声波定向发射器喇叭状外观可以减少声音的分散，从而增大响度D．使用“金嗓子”时，护航官兵佩戴耳罩是在人耳处减弱噪声11.哈尔滨的冬季，千里冰封，万里雪飘。对冬天里可能出现的下列现象，描述正确的是（）A.冰雪大世界的冰雕随时间的推移会逐渐变小B.戴眼镜的人从室内走到室外，眼镜片上会出现“白雾”C.水蒸气在树枝上升华成冰晶，形成雾凇D.屋顶的积雪会液化成水，流到屋檐下凝固成冰锥12．在电子技术中，经常用锡来焊接电路的接头。图2中，能正确表示锡在焊接过程中温度变化的是（）O时间温度O时间温度O时间温度O时间温度ABCD13.下列各种现象形成的过程中，需要吸收热量的是：A．冬天，紧闭的玻璃窗内壁出现冰花B．冰箱内取出的西红柿“冒汗”C．衣柜内的卫生球逐渐变小D．用铁水浇铸工件他身背三角架，手拎仪器箱，每天起早贪黑，晴天一身汗，雨天一身泥，晚上记录复核到深夜geographiclocationYibincityislocatedinbeautifulrichofabundance--SichuanbasinSouthmargin,islocatedinn103°39'-105°20',latitude27°49'-29°16'Zhijian;YibinEastand,Luzhoucity,adjacent;Northand