2019中考物理一轮复习02声真题演练.doc

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1、1声中考真题演练1(2018菏泽中考)下列实验中,用来说明声音传播需要介质的是( )2(2014菏泽中考)关于声现象,下列说法正确的是 ( )A声音在不同介质中的传播速度相同B在真空中也可以传播声音C振动的物体一定会发出声音D一切发声物体都在振动3(2017菏泽中考)关于声现象,下列说法正确的是( )A声音在空气中传播比在水中传播得快B声音和光在空气中传播时,声音传播得较快C喇叭播放的歌曲都是乐音D声音是由物体的振动产生的4(2015菏泽中考)下列与声现象有关的说法中正确的是( )A一切发声的物体都在振动B公路旁安装“声障墙”是在声源处减弱噪声C声和电磁波都能传递信息,且都可以在真空中传播D声

2、音的传播速度一定是 340m/s5(2016菏泽中考)人工智能使得人们的生活越来越方便,华人青年王孟秋发明了一款功能强大的便携式家用“无人相机” ,相机内装有多种高科技传感器,底部装有镜头和声呐(发射超声,同时能接受超声2的装置),机身只有 240 克。你认为向下发射超声的“底部声呐”可能与下列相机的哪个功能有关( )A用手机控制相机B相机能自动悬浮停在合适高度拍摄C相机水平位置运动时遇到障碍物会自动避开D笑脸抓拍6(2018盐城中考)在公共场所“轻声”说话,在课堂上“大声”回答问题,这里的“轻声”和“大声”是指声音的( )A音调 B响度 C音色 D声速7(2018德州中考)如图为木制玩具青蛙刮鼓,用木棒在青蛙背上摩擦,就会发出类似青蛙的叫声,有时还能引起周围青蛙的附和共鸣。下列说法正确的是( )A青蛙刮鼓发出的声音是由木棒振动产生的B模拟青蛙的叫声是指音色相近C青蛙刮鼓发出的声音一定是噪声D能引起周围青蛙的附和共鸣说明声音能传递能量参考答案1C2.D3.D4.A5.B6.B7.B

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