[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fNXaCjfQz46qhHUhz4HWgensLNzsRoqQ2Q5DpASgyQfc":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":31},[],"2026-05-30 18:32:42",5162610,[8,9,10,11],"5.5π","6π","6.5π","7π",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},40,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","0132fe3018be411a866f2b1a5e9adfbb","振动与波单元 测试","如图所示,一平面简谐波沿x 轴正向传播,若 t=0 时刻P1点的相位为 6π,则当t=T\u002F4时,P2点的相位是( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3ab34f1a20212d8576120842cb5a96d6.png\">",[21,32,41,50,59,69,78,87,90,99],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],5162603,[25,26,27,28],"是原来的1\u002F4","是原来的2倍","是原来的1\u002F2","和原来一样","一个物体做一维简谐振动.若其振幅和周期都增加一倍,则该物体的最大加速度( )","v1",0,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],5162604,[36,37,38,39],"0","kA2","kA2\u002F4","kA2\u002F2","弹簧振子在光滑水平面上作简谐振动时,弹性力在半个周期内所做的功为( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":31},[],5162605,[45,46,47,48],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F8510395a537b8abed41bf999e56f6eb2.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ff05e609332c63dfd6c7333382dee04e6.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3681381a73757f8242496681022da336.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F1359e7ee9dbb907d246c28d8668e0966.png\">","一质量为m的物体在劲度系数为k的弹簧作用下在光滑平面上作简谐振动,该系统的最大振幅为A,则物体经过平衡位置的速度为( )",{"answer":51,"createTime":5,"id":52,"options":53,"question":58,"source":30,"type":31},[],5162606,[54,55,56,57],"竖直放置不能作简谐振动,放在光滑斜面上可作简谐振动","竖直放置可作简谐振动,放在光滑斜面上不能作简谐振动","两种情况都可作简谐振动","两种情况都不能作简谐振动","一弹簧振子,当把它水平放置时,它可以作简谐振动.若把它竖直放置或放在固定的光滑斜面上,试判断下面哪种情况是正确的( )",{"answer":60,"createTime":61,"id":62,"options":63,"question":68,"source":30,"type":31},[],"2026-05-18 02:07:49",5162607,[64,65,66,67],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F5f1b89737fd317175de13fa72b8e1ecd.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa0de60541c51420a91dea5ed53dd6826.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F31a511280ec77af22bb54ffbd26a8eb4.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F149b263d9234ab77aeee54000966bc32.png\">","一弹簧振子系统(m,k),物体离开平衡位置的位移按y(t)=Acos(ωt+φ)的规律作简谐振动,当其位移y=0.5A时,其动能为( )",{"answer":70,"createTime":5,"id":71,"options":72,"question":77,"source":30,"type":31},[],5162608,[73,74,75,76],"5m","7m","3m","4m","设某质点同时参与两个振动,两振动方程分别为y1=3cosωt和y2=4cos(ωt+π\u002F2),它们合振动的振幅为( )",{"answer":79,"createTime":5,"id":80,"options":81,"question":86,"source":30,"type":31},[],5162609,[82,83,84,85],"T\u002F12","T\u002F8","T\u002F6","T\u002F4","一质点作简谐振动,周期为T,质点由平衡位置向y轴正方向运动时,由平衡位置到二分之一最大位移这段路程所需的最短时间为( )",{"answer":88,"createTime":5,"id":6,"options":89,"question":19,"source":30,"type":31},[],[8,9,10,11],{"answer":91,"createTime":5,"id":92,"options":93,"question":98,"source":30,"type":31},[],5162611,[94,95,96,97],"0.48m","0.36m","0.12m","0.24m","频率为500Hz的机械波,波速为360m\u002Fs,则同一波线上相位差为π\u002F3的两点的距离为( )",{"answer":100,"createTime":5,"id":101,"options":102,"question":107,"source":30,"type":31},[],5162612,[103,104,105,106],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe95f25edf9ae7ef0d497831a2c41788b.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F7c8c41a1eeb4712a4f81c5e5f64c1610.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F01f3d8896a571089dd8bf9a5f47b0eb1.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F80609a9ae37e0f94e95bd5a0d6f72fa7.png\">","如图所示,一平面简谐波沿x轴正向传播,波速为 u.已知A点处质元的振动方程为yA=Acos(ωt+φ), 则距A点为b的质元B的振动方程为( ) \u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbd72ba6a676eb93b0797c41096ad8fe2.png\">"]