2021年初二物理月考测试卷力学.pdf

一、单选题（每题10 分，总计100 分）如图所示，在固定的光滑斜面上有一轻质弹簧，它的一端固定在斜面上，一物体沿着斜面下滑，从物体刚接触弹簧的一瞬间到弹簧被压缩到最低点的过程中，下列说法中正确的是()A物体的加速度将逐渐增大B物体的加速度将先减小，后增大C物体的速度将逐渐减小D物体的速度逐渐增大如图所示，有一个装有水的容器放在弹簧台秤上，容器内有一只木球被容器底部的细线拉住浸没在水中处于静止，当细线突然断开，小球上升的过程中，弹簧秤的示数与小球静止时相比较()A增大B不变C减小D无法确定3.【2018 年安徽合肥包河区合肥市第一中学高三上学期周测物理试卷（周测二）】如图所示，光滑水平面上放置质量分别为、和的三个木块，其中质量为和的木块间用一不可伸长的轻绳相连，轻绳能承受的最大拉力为现用水平拉力拉质量为的木块，使三个木块以同一加速度运动，则以下说法正确的是()|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 1 页，共 4 页A质量为的木块受到四个力的作用B当逐渐增大到时，轻绳刚好被拉断C当逐渐增大到时，轻绳还不会被拉断D轻绳刚要被拉断时，质量为和的木块间的摩擦力为4.【2017 年 4 月陕西西安长安区长安区第一中学高一下学期月考物理试卷】如图，置于水平地面上相同材料的质量分别为和的两物体间用细绳相连，在上施加一水平恒力，使两物体做匀加速运动，对两物体间绳上的张力，正确的说法是()A地面光滑时，绳子拉力的大小为B地面不光滑时，绳子拉力大于C地面不光滑时，绳子拉力小于D地面光滑时，绳子拉力小于5.动物园的水平地面上放着一只质量为的笼子，内有一只质量为的猴子。当猴子以某一加速度沿竖直柱子加速向上爬时，笼子对地面的压力为，当猴以同样大小的加速度沿竖直柱子加速下滑时，笼子对地面的压力为，如图所示。关于和的大小，下列判断中正确的是()|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 2 页，共 4 页文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4AB，CD，6.如图所示，、两个物块叠放在光滑水平面上，质量分别为和，它们之间的动摩擦因数为设最大静摩擦力等于滑动摩擦力，取现对施加水平拉力，要保持、相对静止，不能超过()ABCD7.光滑水平面上放置质量分别为和的四个木块，其中两个质量为的木块间用可伸长的轻绳相连，木块间的最大静摩擦力。现用水平拉力拉其中一个质量为的木块，使四个木块以同一加速度运动，则轻绳对的最大拉力为()ABCD如图，轻弹簧上端与一质量为的木块相连，下端与另一质量为的木块相连，整个系统置于水平放置的光滑木板上，并处于静止状态 现将木板沿水平方向突然抽出，设抽出后的瞬间，木块的加速度大小分别为、重力加速度大小为则有()A，B，|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 3 页，共 4 页文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4C，D，9.如图，在光滑水平面上有一质量为的足够长的木板，其上叠放一质量为的木块假定木块和木板之间的最大静摩擦力和滑动摩擦力相等现给木块施加一随时间增大的水平力（是常数），木板和木块加速度的大小分别为和，下列反映和变化的图线中正确的是()ABCD10.【2018 年山东潍坊高一上学期期末考试试卷】如图所示，一粗糙的水平传送带以恒定的速度沿顺时针方向运动，传送带的左、右两端皆有一与传送带等高的光滑水平面，一物体以恒定的速度沿水平面分别从左、右两端滑上传送带，下列说法正确的是()A物体从右端滑到左端所需的时间一定大于物体从左端滑到右端的时间B若，物体从左端滑上传送带必然先做加速运动，再做匀速运动C若，物体从右端滑上传送带，则物体不可能到达左端D若，物体从右端滑上传送带又回到右端，在此过程中物体先做减速运动，再做加速运动|精.|品.|可.|编.|辑.|学.|习.|资.|料.*|*|*|*|欢.|迎.|下.|载.第 4 页，共 4 页文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 ZG2Z4Y7Y9P4文档编码:CK2H2V4D9H4 HV2I10A2B8E5 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