初中物理建平县2012-2013学年初二上学期物理期末试题及答案

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初中物理建平县2012-2013学年初二上学期物理期末试题及答案
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  • 难度: 使用次数:383 入库时间:2013-01-15

    如图7所示电路中,当开关S闭合时,下列说法正确的是:   

    A.三只电流表A1A2A3示数相同        

      B.电流表A1A3 示数相同  

    C.电流表A2A3示数相同,A1示数大于A2A3的示数           

      D.电流表A1的示数等于A2A3示数之和

     


     
  • 难度: 使用次数:197 入库时间:2013-01-15

    用一个开关能同时控制电路中的两盏灯,则这两盏灯:

    A.一定是串联                     B.一定是并联                                      

     C.可 能是串联,也可能是并联       D.以上说法都 对                                                                                                                                                                                                                                                                                                                                                                                                                                         

     
  • 难度: 使用次数:143 入库时间:2013-01-15

    以下各项中属于声音可以传递信息的是:

     A.隆隆的雷声预示着一场可能的大雨  

     B.超声波碎石

    C.用听诊器了解病人心、肺的情况   

      D.用声波来清洗眼镜片 

     
  • 难度: 使用次数:58 入库时间:2013-01-15

    小丽同学在湖边游玩,她看到池水中“鱼儿在白云中游动”,关于该现象的分析正确是:                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                                 

    A.看到的“鱼”是光折射形成的  B.“白云是光折射形成的          

     C.看到的“鱼”是光反射形成的虚像  D.“白云是光反射形成的

     
  • 难度: 使用次数:60 入库时间:2013-01-15

    下列说法中正确的是

    A.水的凝固点和冰的熔点相同     

     B.0OC的水也能蒸发

    C.物体吸收热量,温度一定升高    

    D.1标准大气压下,水温达到100OC就一定会沸腾

     

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