[{"data":1,"prerenderedAt":-1},["ShallowReactive",2],{"$ffXJX3hbmzNeesm5jFPsq1iL5jVHzDzhCTXwrXrDlSAE":3},{"answer":4,"createTime":5,"id":6,"options":7,"origin":12,"question":19,"related":20,"source":30,"type":50},[],"2025-05-11 10:58:37",186993400,[8,9,10,11],"v0<0、a>0,物体做加速运动","v0<0、a<0,物体做减速运动","v0>0、a<0,物体先做加速运动后减速运动","v0>0、a=0,物体做匀速运动",{"count":13,"courseId":14,"courseImg":15,"courseName":16,"workId":17,"workName":18},5,"77318efe14826ac82028ffb5c492bff4","https:\u002F\u002Ftihai-oss-cloud.itihey.com\u002Fimg\u002F54e240af381a458ef43a518d25ca9fe4.jpg","物理","ffd7752b06514fda9a4ccefe6545d598","加速度","根据给出的速度、加速度的正负,对具有下列运动性质物体的判断正确的是( )",[21,32,41,51,60],{"answer":22,"createTime":5,"id":23,"options":24,"question":29,"source":30,"type":31},[],186993396,[25,26,27,28],"加速度数值很大的运动物体,速度可以很小","加速度数值很大的运动物体,速度的变化量必然很大","加速度数值很大的运动物体,速度可以减小得很快","加速度数值减小时,物体运动的速度值也必然随着减小","以下对于加速度这个物理量概念的认识中,错误的是( )","v1",1,{"answer":33,"createTime":5,"id":34,"options":35,"question":40,"source":30,"type":31},[],186993397,[36,37,38,39],"物体的瞬时速度总与时间成正比","物体可能做加速运动也可能做减速运动","物体运动的方向不变","在相等的时间内,物体速率的增量相等","如果物体在运动过程中的加速度恒定,则( )",{"answer":42,"createTime":5,"id":43,"options":44,"question":49,"source":30,"type":50},[],186993398,[45,46,47,48],"物体在某时刻运动速度很大,而加速度为零","物体在某时刻运动速度很大,而加速度很大","运动的物体在某时刻速度为零,而其加速度不为零","做变速直线运动的物体,加速度方向与运动方向相同,当物体加速度减小时,它的速度也减小","在下面所说的物体运动情况中,不可能出现的是( )",0,{"answer":52,"createTime":5,"id":53,"options":54,"question":59,"source":30,"type":50},[],186993399,[55,56,57,58],"加速度的方向总是与初速度的方向相同","加速度的方向总是与末速度的方向相同","加速度的方向总是与速度变化的方向相同","加速度的方向总是与位移的方向相同","关于匀变速直线运动中的加速度方向,下列说法中正确的是( )",{"answer":61,"createTime":5,"id":6,"options":62,"question":19,"source":30,"type":50},[],[8,9,10,11]]