1.单选题- (共11题)
A.位移是矢量,位移的方向即质点运动的方向 |
B.路程是标量,即位移的大小 |
C.位移的大小,不会比路程大 |
D.质点做直线运动时,路程等于位移的大小 |
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A.弹簧被压缩,弹簧的弹力大小为10 N |
B.弹簧被压缩,弹簧的弹力大小为6 N |
C.弹簧被拉伸,弹簧的弹力大小为10 N |
D.弹簧被拉伸,弹簧的弹力大小为6 N |

A.小屋受到绳的拉力和小屋对绳的拉力是一对作用力和反作用力 |
B.小屋受到绳的拉力和小屋所受重力是一对作用力和反作用力 |
C.小屋对绳的拉力和小屋所受重力是一对作用力和反作用力 |
D.小屋对绳的拉力和小屋所受重力是一对平衡力 |

A.公式只适用于轨道是椭圆的运动 |
B.式中的k值,对于所有行星(或卫星)都相等 |
C.式中的k值,只与中心天体有关,与绕中心天体旋转的行星(或卫星)无关 |
D.若已知月球与地球之间的距离,根据公式可求出地球与太阳之间的距离 |
A.力对物体做功越多,说明物体的位移一定越大 |
B.静摩擦力总是做正功,滑动摩擦力总是做负功 |
C.作用力做正功,反作用力就一定做负功 |
D.一个物体所受到的一对平衡力所做的功的代数和为零 |
A.能源应用的过程就是内能转化为机械能的过程 |
B.化石能源的能量归根结底来自于太阳能,因此化石能源永远不会枯竭 |
C.在广大的农村推广沼气前景广阔、意义重大,既变废为宝,减少污染,又大量节约能源 |
D.随着科学技术的发展,煤炭资源将取之不尽、用之不竭 |
2.选择题- (共3题)
阅读短文,根据短文内容从各题所给的四个选项中选择最佳选项。
When I was twelve years old, I went with my dad to his work — a car showroom. I was walking 1 carelessly and saw a poor woman with a child beside her standing outside the showroom. I saw that she was crying and went inside to tell my father. He went out and asked the woman to come into the 2. He offered her some water and then asked her what was wrong.
The woman said that her 3 had died and she didn't have anyone else in her family who could help her. She did some manual (体力的) labor to earn some money to take care of her daughter but the child was 4 for the last three days and she was unable to go to work. Now she didn't have a grain of food to eat. While she was telling this story to my father, she was unable to control her emotions (情绪) and started 5 again. My father and I were deeply moved by her story.
We got some food for her and her child. My father then took them to the nearest 6 for her child to be treated as she did not seem to be very well. On the way, we 7 her a 5kg-bag of wheat from the market. My father gave her some money before we left. The lady was so grateful.
It is eight years later, but that event is still very 8 in my mind. My father's kindness to this woman moved me greatly and since then, I have 9 to try and walk a similar path and serve others. I'm happy to see so many other people in this world are also ready to help others when they meet people in 10. They have chosen to walk a service path also.
3.多选题- (共3题)
A.速度与时间成正比 |
B.速度与位移成正比 |
C.速度与时间的二次方成正比 |
D.位移与时间的二次方成正比 |
A.速度不断减小,加速度为零时,速度最小 |
B.速度不断增大,加速度为零时,速度最大 |
C.加速度和速度方向相反 |
D.速度对时间的变化率越来越小,最终为0 |
A. 由于地球比木星离太阳近,所以太阳对地球的引力一定比对木星的引力大
B. 行星绕太阳沿椭圆轨道运动时,在近日点所受引力大,在远日点所受引力小
C. 由F=G


D. 行星绕太阳运动的椭圆轨道可近似看作圆形轨道,其向心力来源于太阳对行星的引力
4.填空题- (共1题)

(1)小车通过第一个光电门的平均速度为__________________;
(2)如果将小车通过光电门的平均速度看作小车的瞬时速度,小车从第一个光电门运动到第二个光电门的加速度为__________________。
5.解答题- (共3题)

(1)第六辆汽车前端刚到达停止线时的速度大小v;
(2)从绿灯刚亮起到第六辆汽车前端与停止线相齐所需最短时间t。


(1)力

(2)撤去外力F时物体的速度大小
(3)物体在水平面上发生的总位移
G=6.67×10-11N·m2/kg2,若要发射一颗地球同步卫星,试求:
(1)地球同步卫星的轨道半径r;
(2)地球同步卫星的环绕速度v的大小,并与第一宇宙速度比较大小关系.
6.实验题- (共1题)
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【1】题量占比
单选题:(11道)
选择题:(3道)
多选题:(3道)
填空题:(1道)
解答题:(3道)
实验题:(1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:13
7星难题:0
8星难题:4
9星难题:2