1.单选题- (共15题)

A.800m | B.900m |
C.1200m | D.1700m |
A.第2s末的速度大小为10m/s | B.第2s末的速度大小为20m/s |
C.在前2s内下落的距离为30m | D.在前2s内下落的距离为40m |

A.在2~4s内物体运动的加速度大小为l.25m/s2 |
B.在2~ 4s内物体运动的加速度大小为0.8 m/s2 |
C.在0~ 5s内物体运动的位移大小为8m |
D.在0~ 5s内物体运动的位移大小为10m |
跳台滑雪是冬季奥运会的比赛项目之一,图3为2018年平昌冬奥会上中国跳台滑雪历史上第一位进入冬奥会的女子运动员常馨月的腾空一跳。图4是跳台滑雪运动场地的示意图。比赛时运动员不借助任何外力,从起滑台起滑后,沿助滑台(可以看成斜面且各处的动摩擦因数相同)运动至助滑台末端起跳点,获得较大速度,在起跳点起跳后,身体前倾与滑雪板成锐角,沿抛物线在空中运动,在着陆坡上某位置着陆后,继续滑行至缓冲区停止。


【小题1】运动员滑到助滑台末端时,关于滑雪板与滑道之间的相互作用力,下列说法正确的是
A.滑雪板对滑道的作用力大于滑道对滑雪板的作用力 |
B.滑雪板对滑道的作用力小于滑道对滑雪板的作用力 |
C.滑雪板对滑道的作用力的大小等于滑道对滑雪板的作用力的大小 |
D.滑雪板对滑道的作用力与滑道对滑雪板的作用力方向相同 |
A.方向与运动方向相同 | B.方向与运动方向相反 |
C.大小一定越来越大 | D.大小一定越来越小 |
A.动能减少 | B.重力势能减少 | C.机械能增加 | D.机械能不变 |
A.物体受到的合力为零,物体运动的速度也一定为零 |
B.物体受到的合力为零,物体运动的速度一定保持不变 |
C.物体所受合力越大,物体运动的速度越大 |
D.物体所受合力越大,物体运动的加速度越小 |
A.加速上升时,宇航员处于失重状态 | B.减速上升时,宇航员处于失重状态 |
C.加速下落时,宇航员处于超重状态 | D.减速下落时,宇航员处于失重状态 |
A.人的动能一直增大 |
B.当绳恰好伸直时,人的动能达到最大 |
C.当人到达最低点时,绳对人的拉力大小等于人所受的重力大小 |
D.当绳的弹性势能逐渐增大的过程中,人和地球组成的系统机械能逐渐减小 |

A.为实现冷却功能,需要为这种超材料提供电能 |
B.为实现冷却功能,需要为这种超材料提供机械能 |
C.这种超材料反射太阳光时可以从其覆盖的物体中吸热 |
D.这种超材料反射太阳光时不能从其覆盖的物体中吸热 |

A. A点电场强度一定大于B点的电场强度
B. A点电场强度一定小于B点的电场强度
C. A点电势一定低于B点电势
D. A点电势一定高于B点电势
2.选择题- (共2题)
阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中选出最佳选项。
There is a well-known story about a farmer1 found an eagle(鹰) egg. The story reminds us of the importance of developing our full potential(潜力).
One day, a hardworking 2 found an eagle's egg lying on the ground of his farm. He was in a hurry 3 he paid no attention to it and 4placed it together with all the chicken eggs. After several days, the egg hatched(孵化)and the little eagle 5 into the world.
The eagle thought he was 6 same as the other chickens, 7 the eagle pecked(啄食)and dug for worms. He ran about and sometimes jumped around, flying a few 8 in the air like the chickens. Over the years, the eagle grew old and tired. One day he saw a splendid bird 9 overhead, and asked, “ 10 is that?” “That's the king of the 11— the bald eagle,” replied a chicken. “The sky is her home. We're chickens -- our home is 12 the farm.”
And so the eagle lived and died 13 a chicken, for that's what he believed he was.
Are you an eagle tha 14 like a chicken? 15 , many people have great talents bu 16 bring them to use. Actually, we 17 make our talents take off by developing our character strengths. Suppose there was a young man who 18 in the world. He asked questions about his environment, explored new neighborhoods where he lived, and soon he mentally mapped out the city he lived in. He used his curiosity to make the 19 of his talents for spatial(空间的)intelligence.
When we use our character strengths, we will 20 that we are eagles.
阅读下面短文,掌握其大意,然后从各题所给的A、B、C、D四个选项中选出最佳选项。
There is a well-known story about a farmer1 found an eagle(鹰) egg. The story reminds us of the importance of developing our full potential(潜力).
One day, a hardworking 2 found an eagle's egg lying on the ground of his farm. He was in a hurry 3 he paid no attention to it and 4placed it together with all the chicken eggs. After several days, the egg hatched(孵化)and the little eagle 5 into the world.
The eagle thought he was 6 same as the other chickens, 7 the eagle pecked(啄食)and dug for worms. He ran about and sometimes jumped around, flying a few 8 in the air like the chickens. Over the years, the eagle grew old and tired. One day he saw a splendid bird 9 overhead, and asked, “ 10 is that?” “That's the king of the 11— the bald eagle,” replied a chicken. “The sky is her home. We're chickens -- our home is 12 the farm.”
And so the eagle lived and died 13 a chicken, for that's what he believed he was.
Are you an eagle tha 14 like a chicken? 15 , many people have great talents bu 16 bring them to use. Actually, we 17 make our talents take off by developing our character strengths. Suppose there was a young man who 18 in the world. He asked questions about his environment, explored new neighborhoods where he lived, and soon he mentally mapped out the city he lived in. He used his curiosity to make the 19 of his talents for spatial(空间的)intelligence.
When we use our character strengths, we will 20 that we are eagles.
3.解答题- (共5题)
(1)物块A在传送带上向右运动的过程中的加速度大小a;
(2)物块A冲上传送带后,向右运动至距传送带左端的最大距离x。
(3)从冲上传送带到返回水平台面这段时间内,由于物块与传送带间摩擦而产生的热量Q。

(1)物体加速度的大小a;
(2)物体在t="2.0" s内位移的大小x。


(1)如图所示,光滑直导轨AB和BC在底部B处平滑连接,形成凹槽结构,导轨的A、C两端在同一水平面上,B到AC水平面距离为H。有一质量为m的小球(可视为质点)从B处以初速度v0(v0<

(2)静电场方向平行于x轴,其电势φ随x的分布可简化为如图所示的折线,图中φ0和 d为已知量。一带负电粒子在电场中x轴上

a.粒子在x=0处的动能与电势能之和;
b.从静止开始,粒子第一次返回到





(1)电场强度的大小E;
(2)A、B两点间的电势差

(3)将该试探电荷从A点移至B点的过程中,电场力所做的功W。
4.实验题- (共1题)

(1)实验前,已经平衡了小车所受的阻力。在托盘中放人适量重物,给打点计时器通电,放开小车,小车拖动纸带运动,打点计时器在纸带上留下一系列点迹。图中O、A、B、C、D是按打点先后顺序依次选取的计数点,每相邻两个计数点间的时间间隔均为O.10s。由图中的数据可知,小车运动的加速度大小是_____m/s2。(计算结果保留三位有效数字)

(2)甲、乙两同学分别利用自己得到的数据画出了a-F图像,却发现图像的斜率并不相同(如图所示)。造成甲、乙两同学得到不同图像的原因可能是__________________

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【1】题量占比
单选题:(15道)
选择题:(2道)
解答题:(5道)
实验题:(1道)
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【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:11
7星难题:0
8星难题:5
9星难题:5