[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$fVWHETftqvNVsWQTYJOyfkWmONky4T8V-Y3mA-_M08wQ":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":24,"type":25},[],"2026-01-07 09:24:19",243568023,[8,9,10,11],"(1)一定同时, (2)一定同时","(1)一定不同时, (2)一定不同时","(1)一定不同时, (2)一定同时","(1)一定同时, (2)一定不同时",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},14,"53e1d2ef4961cca8eea3e23969ad2cb9","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F03a579384a6dc297c89809b582fcc767.png","默认课程","work_48372411","14-1、2、3狭义相对论的基本原理及其时空观","(1) 对某观察者来说,发生在某惯性系中同一地点,同一时刻的两个事件,对于相对该惯性系作匀速直线运动的其它惯性系的观察者来说,它们是否同时发生?(2) 在某惯性系中发生于同一时刻,不同地点的两个事件,它们在其它惯性系中是否同时发生? 关于上述两问题的正确答案是",[21,26,35,44,53,62,71,80,89,98],{"answer":22,"createTime":5,"id":6,"options":23,"question":19,"source":24,"type":25},[],[8,9,10,11],"v1",0,{"answer":27,"createTime":5,"id":28,"options":29,"question":34,"source":24,"type":25},[],243568024,[30,31,32,33],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe370426fe136b0369a1aa0aaed0fdd7a.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3ab5413ceba7cf2cbcdbe819439973e3.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fca6309c10a02619a4486d7d0572b8ccf.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F64b1707d1c8b6afa10147838bfbb4971.png\">","边长为a的正方形薄板静止于惯性系S的Oxy平面内,且两边分别与Ox、Oy轴平行.今有惯性系S¢以0.8c的速度相对于S系沿Ox轴作匀速直线运动,则从S¢系测得薄板的面积为()",{"answer":36,"createTime":5,"id":37,"options":38,"question":43,"source":24,"type":25},[],243568025,[39,40,41,42],"A、B仍是同时又同地发生","A、B可能不同时但同地发生","A、B可能既不同时又不同地发生","A、B可能同时而不同地发生","在惯性系S中同时又同地发生的事件A、B,在其他运动着的惯性系中测量()",{"answer":45,"createTime":5,"id":46,"options":47,"question":52,"source":24,"type":25},[],243568026,[48,49,50,51],"60m 3×10-7s","60m 9×10-7s","90m 9×10-7s","90m 3×10-7s","静止长度为90m的宇宙飞船以相对地球0.8c的速度飞离地球,一光脉冲从船尾传到船头.求飞船上的观察者测得该光脉冲走的距离和时间",{"answer":54,"createTime":5,"id":55,"options":56,"question":61,"source":24,"type":25},[],243568027,[57,58,59,60],"10s","3.6s","8s","6s","在某地发生两件事,静止位于该地的甲测得时间间隔为6s,若相对甲以4c\u002F5(c表示真空中光速)的速率作匀速直线运动的乙测得时间间隔为",{"answer":63,"createTime":5,"id":64,"options":65,"question":70,"source":24,"type":25},[],243568028,[66,67,68,69],"在一惯性系不同地点不同时发生的两个事件,在另一惯性系一定不同时发生","在一惯性系同一地点同时发生的两个事件,在另一惯性系一定同时发生","在一惯性系不同地点同时发生的两个事件,在另一惯性系一定同时发生","在一惯性系同时发生的两个事件,在另一惯性系一定不同时发生","关于同时性有人提出以下一些结论,其中()是正确的",{"answer":72,"createTime":5,"id":73,"options":74,"question":79,"source":24,"type":25},[],243568029,[75,76,77,78],"左端先对齐,然后右端对齐","两杆左右端点永远无法对齐","两杆左右端点同时对齐","右端先对齐,然后左端对齐","如图所示,两根固有长度为l0的细杆正平行于x轴方向作相向匀速运动,观察者A、B分别固定在两杆上.当两杆相互接近时,观察者A首先发现两杆左端对齐(即两杆端点在x轴上坐标相同),然后是右端对齐.观察者B认为( ).\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F882358a329f11a449cd9464f39491541.png\">",{"answer":81,"createTime":5,"id":82,"options":83,"question":88,"source":24,"type":25},[],243568030,[84,85,86,87],"c+u,c-u","u,c","c,u","c,c","有一速度为u的宇宙飞船沿x轴的正方向飞行,飞船头尾各有一个脉冲光源在工作,处于船尾的观察者测得船头光源发出的光脉冲的传播速度大小为 ; 处于船头的观察者测得船尾光源发出的光脉冲的传播速度大小为",{"answer":90,"createTime":5,"id":91,"options":92,"question":97,"source":24,"type":25},[],243568031,[93,94,95,96],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fa963a1557e270a2dc42a05a2e986f2c8.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F26936e5d43eabacb72ae1ffebb845cbc.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F3c7650c2ed0ae666a6fa83e7c08ad840.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F11d303212049709cbc5666e2787623ad.png\">","一粒子在惯性系S中沿y轴正方向以光速c运动,当S系中的观测者以速率v沿x轴正方向运动时,观测者测得粒子的速度为()",{"answer":99,"createTime":5,"id":100,"options":101,"question":106,"source":24,"type":25},[],243568032,[102,103,104,105],"\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fe17454a411d0bbd0dba422144d503597.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Ffed6e2203999e184b604df975b26f0ce.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002Fbdd2d9024054c3a36e38e27953525681.png\">","\u003Cimg src=\"https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F107e53044d2e4d3df7f16e5fcc0214a2.png\">","匀质细棒静止时的质量为m0,长度为l0,当它沿棒长方向作高速的匀速直线运动时,测得它的长为l,则该棒的运动速度大小为()"]