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如图所示，在高为2L的光滑桌面上的左端固定一轻质弹簧，在桌面右端的正上方通过一长为L轻绳悬挂一小球B，小球B刚好与桌面接触．弹簧的右端与小球A接触而不固连，弹簧处于原长时，用一水平力推小球A，使弹簧...
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高三下学期物理《》真题及答案
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如图所示一轻质弹簧的一端固定在滑块B.上另一端与滑块C.接触但未连接该整体静止放在离地面高为H=5m
如图所示在高度h=0.8m的水平光滑桌面上有一轻弹簧左端固定质量为m=1kg的小球在外力作用下使弹簧
如图所示半径为R.的光滑半圆环轨道竖直固定在一水平光滑的桌面上桌面距水平地面的高度也为R.在桌面上轻
如图所示半径为R.的光滑半圆环轨道竖直固定在一水平光滑的桌面上桌面距水平地面的高度也为R.在桌面上轻
如图所示四个完全相同的弹簧都处于水平位置它们的右端受到大小皆为F的拉力作用而左端的情况各不相同①弹簧
L
2
>L
1
L
4
>L
3
L
1
>L
3
L
2
＝L
4
8分 某同学利用下述装置对轻质弹簧的弹性势能进行探究一轻质弹簧放置在光滑水平桌面上弹簧左端固定右端
如图所示四个完全相同的弹簧都处于水平位置它们的右端受到大小皆为F.的拉力作用而左端的情况各不相同①弹
L.
2
> L.
1
L.
4
> L.
3
L.
1
> L.
3
L.
2
= L.
4
如图所示四处完全相同的弹簧都处于水平位置它们的右端受到大小皆为F.的拉力作用而左端的情况各不相同:①
L
2
>L
1
L
4
>L
3
L
1
>L
3
L
2
=L
4
如图所示在光滑桌面上有一轻质弹簧它的两端连接质量不等的两个小球用两手挤小球便弹簧被压缩而静止在桌面上
动能相等
动量大小相等
速度大小相等
加速度大小相等
如图所示在光滑桌面上有一轻质弹簧它的两端连接质量不等的两个小球用两手挤小球便弹簧被压缩而静止在桌面
动能相等
动量大小相等
速度大小相等
加速度大小相等
如图所示一根轻质弹簧竖直放在桌面上下端固定上端放一重物m稳定后弹簧长为L现将弹簧截成等长的两段将重物
L′=L
L′＞L.
L′＜L
因不知弹簧原长，故无法确定
如图所示在光滑桌面上有一轻质弹簧它的两端连接质量不等的两个小球用两手挤小球便弹簧被压缩而静止在桌面上
动能相等
动量大小相等
速度大小相等
加速度大小相等
如图所示半径为R.的光滑半圆环轨道竖直固定在一水平光滑的桌面上桌面距水平地面的高度也为R.在桌面上轻
如图所示一轻质弹簧弹性系数为k两端各固定一质量分别为M1=M-m和M2=M的物块A和B放在水平
如图所示一根轻质弹簧竖直放在桌面上下端固定上端放一重物m稳定后弹簧长为L现将弹簧截成等长的两段将重物
L′=L
L′＞L
L′＜L
因不知弹簧原长，故无法确定
如图所示在一固定在水平桌面上的斜面顶端固定一轻弹簧弹簧的另一端固定一滑块滑块与斜面之间的动摩擦因数为
2
3
4
5
如图所示一轻质弹簧的一端固定在滑块B.上另一端与滑块C.接触但未连接该整体静止放在离地面高为H=5m
某同学研究轻质弹簧的弹性势能与形变量的关系实验装置如下图所示在高度为h的光滑水平桌面上沿与桌面边缘垂
如图所示四个完全相同的弹簧都处于水平位置它们的右端受到大小皆为F的拉力作用而左端的情况各不相同①中弹
l
2
>l
1
l
4
>l
3
l
1
>l
3
l
2
=l
4
如图所示一轻质弹簧弹性系数为k两端各固定一质量分别为M1=M-m和M2=M的物块A和B放在水平
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