云南省彝良县民族中学2018-2019学年高一上学期期中考试物理试题

适用年级:高一
试卷号:672522

试卷类型:期中
试卷考试时间:2019/1/8

1.单选题(共11题)

1.
一物体由静止开始沿直线运动,其加速度随时间变化的规律如图所示.取物体开始运动的方向为正方向,则下列关于物体运动的vt图象正确的是(  )
A.B.
C.D.
2.
关于速度、速度改变量、加速度,正确的说法是(  )
A.物体运动的速度改变量很大,它的加速度一定很大
B.物体速度越大,其加速度越大
C.某时刻物体的速度为零,其加速度一定为零
D.加速度很大时,运动物体的速度可能很小
3.
如图所示是一张小球做单向直线运动的频闪照片示意图,频闪周期s,则小球在图中三个频闪过程中的平均速度大小是(  )
A.1.80  m/sB.1.50  m/sC.0.60  m/sD.0.50  m/s
4.
如图所示的vt图象中,表示物体做匀减速运动的是 (  )
A.B.
C.D.
5.
如图,在水平桌面上放置一斜面体P,两长方体物块ab叠放在P的斜面上,整个系统处于静止状态.若将abbPP与桌面之间摩擦力的大小分别用Ff1Ff2Ff3示.则(  )
A.Ff1≠0,Ff2=0,Ff3=0
B.Ff1≠0,Ff2≠0,Ff3=0
C.Ff1=0,Ff2≠0,Ff3≠0
D.Ff1≠0,Ff2≠0,Ff3≠0
6.
放在斜面上的物体,所受重力G可以分解为使物体沿斜面向下滑的分力F1和使物体压紧斜面的分力F2,当斜面倾角增大时( )
A. F1F2都增大
B. F1F2都减小
C. F1增大,F2减小
D. F1减小,F2增大
7.
如图是姚明在比赛中的一张照片,记者给出的标题是“姚明对球施魔力”.下面是几位同学关于照片中篮球的说法,其中正确的是(空气阻力忽略不计)(  )
A.球只受到重力的作用
B.球只受到一个沿运动方向的力的作用
C.球此时此刻不受到任何外力作用
D.球受到姚明给的一个力和重力的共同作用
8.
如图中a、b、c三个物块,M、N为两个轻质弹簧,R为跨过光滑定滑轮的轻绳,它们按图中方式连接并处于平衡状态,则下列说法中错误的是()
A.有可能N处于拉伸状态而M处于压缩状态;
B.有可能N处于压缩状态而M处于拉伸状态;
C.有可能N处于不伸不缩状态而M处于压缩状态;
D.有可能N处于拉伸状态而M处于不伸不缩状态。
9.
在做“验证力的平行四边形定则”实验时,橡皮条的一端固定在木板上,用两个弹簧测力计把橡皮条的另一端拉到某一确定的O点,以下操作正确的(  )
A.同一次实验过程中,O点位置允许变动
B.实验中,弹簧测力计必须保持与木板平行,读数时视线要正对弹簧测力计的刻度
C.实验中,先将其中一个弹簧测力计沿某一方向拉到最大量程,然后只需调节另一个弹簧测力计拉力的大小和方向,把橡皮条另一端拉到O
D.实验中,把橡皮条的另一端拉到O点时,两个弹簧测力计之间的夹角应取90°,以便于算出合力的大小
10.
质点做直线运动的速度—时间图象如图所示,该质点
A.在第1秒末速度方向发生了改变
B.在第2秒末加速度方向发生了改变
C.在前2秒内发生的位移为零
D.第3秒和第5秒末的位置相同
11.
如图,在水平桌面上放置一斜面体P,两长方体物块ab叠放在P的斜面上,整个系统处于静止状态.若将abbPP与桌面之间摩擦力的大小分别用f1f2f3表示.则( ).
A.f1=0,f2≠0,f3≠0B.f1≠0,f2≠0,f3=0
C.f1≠0,f2=0,f3=0D.f1≠0,f2≠0,f3≠0

2.选择题(共6题)

12.

阅读理解

       One day, a college student was taking a walk with a professor.As they went along, they saw lying in the path a pair of old shoes.They supposed the shoes belonged to a poor man who was employed in a field close by, and who had nearly finished his day's work.

      The student turned to the professor, saying, “ Let us play the man a trick: we will hide his shoes, and hide ourselves behind those bushes, and wait to see his confusion when he cannot find them”.

    “My young friend,” answered the professor, “we should never amuse ourselves at the expense of the poor.But you are rich, and may give yourself a much greater pleasure by tricking on the poor man.Put a coin into each shoe, and then we will hide ourselves and watch how the discovery affects him.”

       The student did so, and they both placed themselves behind the bushes close by.The poor man soon finished his work, and came across the field to the path where he had left his coat and shoes.After he slipped his foot into one of his shoes, he felt something hard.He bent down to feel what it was, and found the coin.Astonishment and wonder were seen on his face.He fixed his eyes on the coin, turned it round, and looked at it again and again.He then looked around him on all sides, but no person was to be seen.He now put the money into his pocket, and continued to put on the other shoe; but his surprise was doubled on finding the other coin.His feelings overcame him.He fell upon his knees, looked up to heaven and cried a sincere thanksgiving, in which he spoke of his wife, sick and helpless, and his children without bread. He said the help would save them from dying.

      The student stood there, deeply affected, and his eyes filled with tears.“Now,” said the professor, “are you not much better pleased than if you had played your intended trick?”

      The youth replied, “You have taught me a lesson which I will never forget.”

13.

阅读理解

       One day, a college student was taking a walk with a professor.As they went along, they saw lying in the path a pair of old shoes.They supposed the shoes belonged to a poor man who was employed in a field close by, and who had nearly finished his day's work.

      The student turned to the professor, saying, “ Let us play the man a trick: we will hide his shoes, and hide ourselves behind those bushes, and wait to see his confusion when he cannot find them”.

    “My young friend,” answered the professor, “we should never amuse ourselves at the expense of the poor.But you are rich, and may give yourself a much greater pleasure by tricking on the poor man.Put a coin into each shoe, and then we will hide ourselves and watch how the discovery affects him.”

       The student did so, and they both placed themselves behind the bushes close by.The poor man soon finished his work, and came across the field to the path where he had left his coat and shoes.After he slipped his foot into one of his shoes, he felt something hard.He bent down to feel what it was, and found the coin.Astonishment and wonder were seen on his face.He fixed his eyes on the coin, turned it round, and looked at it again and again.He then looked around him on all sides, but no person was to be seen.He now put the money into his pocket, and continued to put on the other shoe; but his surprise was doubled on finding the other coin.His feelings overcame him.He fell upon his knees, looked up to heaven and cried a sincere thanksgiving, in which he spoke of his wife, sick and helpless, and his children without bread. He said the help would save them from dying.

      The student stood there, deeply affected, and his eyes filled with tears.“Now,” said the professor, “are you not much better pleased than if you had played your intended trick?”

      The youth replied, “You have taught me a lesson which I will never forget.”

14.

有一个民族主要居住在平均海拔4 000米以上的高原,喜食糌粑和青稞酒,献“哈达”是他们最常见的礼节。这个民族是    (    )  

15.

有一个民族主要居住在平均海拔4 000米以上的高原,喜食糌粑和青稞酒,献“哈达”是他们最常见的礼节。这个民族是    (    )  

16.下面是工业区位选择模式图,其中线段长短表示影响程度的大小,下列情况与甲、乙、丙、丁四图相符的是
17.按规律填数.

15,20,{#blank#}1{#/blank#}、{#blank#}2{#/blank#}、{#blank#}3{#/blank#}、{#blank#}4{#/blank#}

3,5,{#blank#}5{#/blank#}、9,{#blank#}6{#/blank#}、13,{#blank#}7{#/blank#}

2,5,{#blank#}8{#/blank#}、11,{#blank#}9{#/blank#}、{#blank#}10{#/blank#}、20

3.多选题(共3题)

18.
一物体以10 m/s的初速度向南做匀变速直线运动,4 s后速度大小变为6 m/s,则该物体的加速度可能为(  )
A.1m/s2,方向向北
B.1m/s2,方向向南
C.4m/s2,方向向北
D.4m/s2,方向向南
19.
在刚刚结束的校运动会上,我班运动员顽强拼搏,挑战极限,取得了优异的成绩。下面关于运动员们的“快”字理解正确的是()
A.小李同学在800米决赛中取得了第一名,同学们纷纷说他跑的“快”,是指小李同学的平均速率大
B.小王同学在100米决赛中起跑很“快”,是指小王同学起跑时加速度大
C.小刘在100米决赛中取得了第一名,好“快”呀,是指小刘同学的平均速度大
D.在100米决赛中,小刘同学取得了第一名,小王同学取得了第二名。同学们说小刘同学比小王同学跑的“快”,是指任意时刻速度大
20.
某物体做匀加速直线运动,先后经过MN两点的速度分别为v和3v,经历的时间为t,则下列说法中正确的是(  )
A.物体经过MN中点时的速度为2v
B.物体在时间t的中间时刻的速度为2v
C.物体经过任意时间t,速度的增量均为2v
D.物体在后时间所通过的距离比前时间所通过的距离大

4.解答题(共4题)

21.
一物体以某一速度冲上一光滑斜面,前4 s的位移为1.6 m,随后4 s的位移为零,那么物体的加速度多大?(设物体做匀变速直线运动且返回时加速度不变)你能想到几种方法?
22.
一枚小火箭携带试验炸弹竖直发射升空,小火箭的加速度a=10m/s2t1=20s后小火箭与试验炸弹分离,预定试验炸弹在最高点爆炸,取g=10 m/s2,不计空气阻力.
(1)试验炸弹预定爆炸点的高度是多少?
(2)若试验失败,炸弹未爆炸,如果不采取措施,炸弹会在分离后多长时间落地?为了防止危险,在炸弹到达最高点10s后,以v0=400m/s竖直发射一枚炮弹拦截,拦截点的高度是多少?
23.
一汽车正以108 km/h的速度在高速路上行驶,前方突遇事故,它采取急刹车,刹车的加速度大小为6 m/s2.求该车刹车3秒及6秒后的速度.
24.
物体A在水平力F=400 N的作用下,沿倾角θ=53°的斜面匀速下滑,如图所示.物体A的重力G=400 N,求斜面对物体A的支持力和A与斜面间的动摩擦因数μ.(sin 53°=0.8,cos 53°=0.6)

5.实验题(共2题)

25.
在“探究小车速度随时间变化的规律”的实验中,打点计时器使用的交变电流的频率为50Hz,记录小车做匀变速运动的纸带如图所示.在纸带上选择标为0~5的六个计数点,相邻的两个计数点之间还有四个点没有画出.纸带旁并排放着带有最小刻度为毫米的刻度尺,零点跟“0”计数点对齐.
【小题1】由图可以读出1、3、5三个计数点跟“0”点的距离为d1d2d3,请将测量值填入表中__________.(结果保留两位小数)

【小题2】小车打计数点“2”时的速度大小为________m/s,打计数点“4”时的速度大小为________m/s,小车的加速度大小是________ m/s2.
26.
某同学探究弹力与弹簧伸长量的关系。
(1)将弹簧悬挂在铁架台上,将刻度尺固定在弹簧一侧,弹簧轴线和刻度尺都应在________方向(填“水平”或“竖直”)。
(2)弹簧自然悬挂,待弹簧______时,长度记为L0,弹簧下端挂上砝码盘时,长度记为Lx;在砝码盘中每次增加10 g砝码,弹簧长度依次记为L1L6,数据如下表表:

表中有一个数值记录不规范,代表符号为_______。由表可知所用刻度尺的最小分度为______。
(3)如图是该同学根据表中数据作的图,纵轴是砝码的质量,横轴是弹簧长度与____________的差值(填“”)。

(4)由图可知弹簧的劲度系数为_________N/m;通过图和表可知砝码盘的质量为_________g(结果保留两位有效数字,重力加速度取9.8 m/s2)。
试卷分析
  • 【1】题量占比

    单选题:(11道)

    选择题:(6道)

    多选题:(3道)

    解答题:(4道)

    实验题:(2道)

  • 【2】:难度分析

    1星难题:0

    2星难题:0

    3星难题:0

    4星难题:0

    5星难题:0

    6星难题:9

    7星难题:0

    8星难题:7

    9星难题:4