河南湘豫名校2026-2027学年高一上学期10月阶段检测物理试题(B版)

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姓        名____________

准考证号____________

绝密★启用前

10月高一物理B版

注意事项:

1. 本试卷共8页。时间75分钟,满分100分。答题前,考生先将自己的姓名、准考证号填写在试卷指定位置,并将姓名、考场号、座位号、准考证号填写在答题卡上,然后认真核对条形码上的信息,并将条形码粘贴在答题卡上的指定位置。

2. 作答选择题时,选出每小题答案后,用2B铅笔把答题卡上对应题目的答案标号涂黑。如需改动,用橡皮擦干净后,再选涂其他答案标号。作答非选择题时,将答案写在答题卡上对应的答题区域内。写在本试卷上无效。

3. 考试结束后,将试卷和答题卡一并收回。

一、单项选择题:本题共7小题,每小题4分,共28分。在每小题给出的四个选项中,只有一项是符合题目要求的。

1.如图,一只小猫睡在气垫上,下列说法正确的是

A.小猫的重力就是小猫对气垫的压力

B.小猫对气垫的压力是因为气垫发生形变而产生的

C.小猫对气垫的压力和气垫对小猫的支持力是一对平衡力

D.小猫对气垫的压力和气垫对小猫的支持力是一对作用力和反作用力

2.如图,三角形木块A静止在倾角为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的斜面B上,斜面B静止在木板C上,木板C静止在水平地面上。下列说法正确的是

A.斜面B对木块A的作用力竖直向上

B.斜面B对木块A的作用力垂直斜面向上

C.斜面B相对于木板C有水平向左的运动趋势page number 0

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D.斜面B相对于木板C有水平向右的运动趋势

3.“牧羊人之跃”是西班牙加那利群岛山区牧羊人翻山越岭的古老技艺,牧羊人手持一根长木杆,从土坡纵身跃下,然后顺着杆子滑落地面。“牧羊人之跃”可简化为如下的物理情景:把牧羊人看作质点,牧羊人最初位于竖直杆AB的最上端A点,人和杆一起从土坡做自由落体运动,当杆的B端触及地面时,杆立即静止,人顺着杆匀减速滑落到地面,到达地面时速度为零。已知土坡距离地面的高度为H,杆的长度为L,重力加速度大小为g,忽略空气阻力,则人沿杆滑落过程中的加速度大小为

A.

B.

C.

D.

4.如图,弹簧上端连接天花板,下端悬挂一个横截面积为S的圆柱形小桶,缓慢往小桶中注水,小桶中的水在不断增加,但观察到水面与地面之间的距离保持不变。已知水的密度大小为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,重力加速度大小为g,则弹簧的劲度系数为

A.

B.

C.

D.page number 1

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5.一个质点沿一条直线运动,先以2 m/s的速度匀速行进了前一半的位移,然后在剩下后一半的位移中,前半段时间以3 m/s的速度匀速前进,后半段时间以2 m/s的速度匀速前进。质点在整个运动过程中的平均速度为

A.eqWmf183GmgAAAAAAAGAE4AMBCQAAAACQWQEACQAAA/4BAAAEAKIAAAAAAAUAAAACAQEAAAAFAAAAAQL///8ABQAAAC4BGQAAAAUAAAALAgAAAAAFAAAADALgA2AECwAAACYGDwAMAE1hdGhUeXBlAADAABIAAAAmBg8AGgD/////AAAQAAAAwP///7j///8gBAAAmAMAAAgAAAD6AgAAEAAAAAAAAAIEAAAALQEAAAUAAAAUAgACQAAFAAAAEwIAAigBBQAAAAkCAAAAAgUAAAAUAm4BVAAcAAAA+wKA/gAAAAAAAJABAAAAAAACABBUaW1lcyBOZXcgUm9tYW4AWM8vA+FAD3X4DxV1AAAAAAQAAAAtAQEACQAAADIKAAAAAAEAAAAxAAADBQAAABQCYALGAhwAAAD7AoD+AAAAAAAAkAEAAAAAAAIAEFRpbWVzIE5ldyBSb21hbgBYzy8D4UAPdfgPFXUAAAAABAAAAC0BAgAEAAAA8AEBAAkAAAAyCgAAAAABAAAALwAAAwUAAAAUAowDWgAcAAAA+wKA/gAAAAAAAJABAAAAAAACABBUaW1lcyBOZXcgUm9tYW4AWM8vA+FAD3X4DxV1AAAAAAQAAAAtAQEABAAAAPABAgAJAAAAMgoAAAAAAQAAADIAAAMFAAAAFAJgAmoBHAAAAPsCgP4AAAAAAACQAQEAAAAAAgAQVGltZXMgTmV3IFJvbWFuAFjPLwPhQA91+A8VdQAAAAAEAAAALQECAAQAAADwAQEACgAAADIKAAAAAAIAAABtcxwCAAOiAAAAJgYPADoBQXBwc01GQ0MBABMBAAATAQAARGVzaWduIFNjaWVuY2UsIEluYy4ABQEABwhEU01UNwABE1dpbkFsbEJhc2ljQ29kZVBhZ2VzABEFVGltZXMgTmV3IFJvbWFuABEDU3ltYm9sABEFQ291cmllciBOZXcAEQRNVCBFeHRyYQATV2luQWxsQ29kZVBhZ2VzABEGy87M5QASAAghLyfyXyGPIS9HX0FQ8h8eQVD0FQ9BAPRF9CX0j0JfQQD0EA9DX0EA8h8gpfIKJfSPIfQQD0EA9A9I9Bf0j0EA8hpfRF9F9F9F9F9BDwwBAAEAAQICAgIAAgABAQEAAwABAAQABQAKAQAQAAAAAAAAAA8BAwALAAAPAAEADwECAIgxAAAPAAEADwECAIgyAAAAAgCDbQACAIIvAAIAg3MAAAAKAAAAJgYPAAoA/////wEAAAAAAAgAAAD6AgAAAAAAAAAAAAAEAAAALQEBABwAAAD7AhAABwAAAAAAvAIAAACGAQICIlN5c3RlbQAAIQCKAgAACgAGAAAAIQCKAv////9Q2S8DBAAAAC0BAwAEAAAA8AECAAMAAAAAAA==                     B.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                     C.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                     D.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

6.一质点沿着一条直线以某一初速度做加速运动,加速度大小a与瞬时速度大小v成正比,下列反映质点的位移x与速度v之间关系的图像中正确的是

A.   B.   C.   D.

7.如图,在一个桌面上方有三个金属小球a、b、c,离桌面的高度之比为 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。若先后顺次释放a、b、c,三球刚好同时落到桌面上,不计空气阻力,则

A.三者平均速度一样大

B.三者运动时间之比为

C.三者到达桌面时的速度大小之比是eqWmf183GmgAAAAAAAGAGQAIACQAAAAAxWgEACQAAA/4BAAAHAKkAAAAAAAUAAAACAQEAAAAFAAAAAQL///8ABQAAAC4BGQAAAAUAAAALAgAAAAAFAAAADAJAAmAGCwAAACYGDwAMAE1hdGhUeXBlAABAABIAAAAmBg8AGgD/////AAAQAAAAwP///7r///8gBgAA+gEAAAgAAAD6AgAAAAAAAAAAAAIEAAAALQEAAAUAAAAUAmIBQwAFAAAAEwJMAWoABQAAABMC5gHHAAUAAAATAk8ALQEFAAAAEwJPAPQBBwAAAPwCAAAAAAACAAAEAAAALQEBAAgAAAD6AgUAAQAAAAAAAAAEAAAALQECABoAAAAkAwsAQABdAXUAQAHIAL4BJgFGAPQBRgD0AVkANAFZANEA5gG+AOYBYABZAUYAaAEEAAAALQEAAAUAAAAUAl4B7QIFAAAAEwJIARQDBQAAABMC4AFxAwUAAAATAk8A1wMFAAAAEwJPALYEBAAAAC0BAgAaAAAAJAMLAOoCWQEfAzwBcgO4AdADRgC2BEYAtgRZAN4DWQB7A+ABaAPgAQoDVAHwAmQBBAAAAC0BAAAFAAAACQIAAAACBQAAABQCwAEyARwAAAD7AoD+AAAAAAAAkAEAAAAAAAIAEFRpbWVzIE5ldyBSb21hbgBYzy8D4UAPdfgPFXUAAAAABAAAAC0BAwAPAAAAMgoAAAAABQAAADM6MjoxRQoBrAEWAX4AAAOpAAAAJgYPAEgBQXBwc01GQ0MBACEBAAAhAQAARGVzaWduIFNjaWVuY2UsIEluYy4ABQEABwhEU01UNwABE1dpbkFsbEJhc2ljQ29kZVBhZ2VzABEFVGltZXMgTmV3IFJvbWFuABEDU3ltYm9sABEFQ291cmllciBOZXcAEQRNVCBFeHRyYQATV2luQWxsQ29kZVBhZ2VzABEGy87M5QASAAghLyfyXyGPIS9HX0FQ8h8eQVD0FQ9BAPRF9CX0j0JfQQD0EA9DX0EA8h8gpfIKJfSPIfQQD0EA9A9I9Bf0j0EA8hpfRF9F9F9F9F9BDwwBAAEAAQICAgIAAgABAQEAAwABAAQABQAKAQAQAAAAAAAAAA8BAwAKAAAPAAEADwECAIgzAAALAQEACgIAgjoAAwAKAAAPAAEADwECAIgyAAALAQEACgIAgjoAAgCIMQAAAAoAAAAmBg8ACgD/////AQAAAAAACAAAAPoCAAAAAAAAAAAAAAQAAAAtAQQABwAAAPwCAAAAAAAAAAAEAAAALQEFABwAAAD7AhAABwAAAAAAvAIAAACGAQICIlN5c3RlbQAAIQCKAgAACgAGAAAAIQCKAv////9Q2S8DBAAAAC0BBgAEAAAA8AEDAAMAAAAAAA==

D.若三个小球同时释放,落至桌面的时间之比为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

二、多项选择题:本题共3小题,每小题6分,共18分。在每小题给出的四个选项中,有多项符合题目要求。全部选对的得6分,选对但不全的得3分,有选错的得0分。

8.如图,木块放在木板上,木板放在水平面上,木块与墙壁之间连接一个弹簧测力计,用的水平拉力作用在木板上时,木板刚好向左匀速运动,此时弹簧测力计读数为1 N。已知木块与木板之间、木板与地面之间的动摩擦因数相等。下列说法正确的是


A.木块对木板的摩擦力方向向左

B.木块对木板的摩擦力大小等于1 N

C.地面对木板的摩擦力大小等于4 N

D.木块和木板的质量之比为1∶2page number 2

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