1.单选题- (共13题)
| A．跳入泳池的速度 |
| B．终点撞线时的速度 |
| C．全程的平均速度 |
| D．全程的平均速率 |
| A．运动物体在某一位置的速度，是物体在该位置速度的数值 |
| B．运动物体在某一段位移内的速度，既能表示物体在该段位移内速度的大小，又能表示速度的方向 |
| C．运动物体在某一段路程内的速度，只能表示物体在该段位移内速度的大小，不能表示速度的方向 |
| D．运动物体在某一时刻的速度，既能表示物体在该时刻速度的大小，又能表示速度的方向 |
A．质点 s时刻的瞬时速度大于 s时刻的瞬时速度 |
| B．质点的瞬时速度不变 |
| C．质点第3 s内的平均速度小于第4 s内的平均速度 |
D．质点前5 s内的平均速度是1  |
| A．研究平均速度，要说明是哪段时间内的平均速度 |
| B．研究平均速度，要说明是哪段位移内的平均速度 |
| C．对于匀速直线运动，其平均速度与哪段时间或哪段位移无关 |
| D．平均速度和瞬时速度都能精确地描述变速直线运动 |
，
，
| A．单点测速仪测的是汽车的瞬时速率 |
| B．单点测速仪测的是汽车的平均速率 |
| C．区间测速测的是汽车的瞬时速率 |
| D．区间测速测的是汽车的平均速率 |
某同学假日乘汽车到宿迁观光，在公路上两次看到路牌和手表如图所示，则该同学乘坐的汽车在该段时间内行驶的平均速率为
A． | B． | C． | D． |
| A．98.5km/h | B．27.4 km/hn | C．90.9 km/h | D．29.8 km/h |
| A．13.75 m/s | B．12.5 m/s |
| C．12 m/s | D．11.75 m/s |
A．平均速度 ，当Δt充分小时，该式可表示t时刻的瞬时速度 |
| B．匀速直线运动的平均速度等于瞬时速度 |
| C．瞬时速度和平均速度都可以精确描述变速运动 |
| D．只有瞬时速度可以精确描述变速运动 |
| A．做变速运动的物体在相同时间间隔里的平均速度是相同的 |
| B．瞬时速度就是运动的物体在一段较短的时间内的平均速度 |
| C．平均速度就是初末时刻瞬时速度的平均值 |
| D．某物体在某段时间里的瞬时速度都为零，则该物体在这段时间内静止 |
| A．8 m/s、24 m/s |
| B．24 m/s、8 m/s |
| C．12 m/s、24 m/s |
| D．24 m/s、12 m/s |
2.选择题- (共2题)
完形填空
It was Christmas Eve 1881. I was 15 years old and feeling like the world was 1 for me because there hadn't been enough money to buy me the rifle that I'd wanted that year.
Pa came back in and there was ice in his beard. “Come on, Matt,” Pa said. “Dress warmly. It's cold outside. We're going to Widow Jensen's. They are 2 wood.” Widow Jensen lived about two miles down the road. Her husband had died a year or so before and 3 her with three children, the oldest being eight.
I 4 went out with Pa and we 5 the sled high with wood. 6 we went to the store and Pa took down a big ham, some bacon, a sack of flour and some shoes, which were put into a smaller sack. We rode the two miles to Widow Jensen's in 7. I tried to think through what Pa was doing. I knew we didn't have much money and Widow Jensen had 8 neighbors than us. It shouldn't have been our 9.
Widow Jensen opened the door and let us in. She had a blanket wrapped around her 10. The children were wrapped in 11 and were sitting in front of the fireplace by a very small fire that 12 gave off any heat at all. “We brought you a few things , Ma'am，” Pa said and set down the sack of flour. I put the meat on the table. Then Pa handed her the sack that had the shoes in it.
She 13 and took the shoes out one pair at a time. I watched her carefully. She bit her lower lip to keep it from 14 and then tears filled her eyes and started running down her cheeks. She looked up at Pa like she wanted to say something, 15 it wouldn't come out. “We brought a load of wood too, Ma'am,” Pa said. Then he turned to me and said，“Matt，go bring some in. ”
I wasn't the 16 person when I went back out to bring in the wood. I choked and as much as I hate to 17 it, there were tears in my eyes too. In my mind I kept 18 those three kids huddled (蜷缩)around the fireplace and their mother standing there with tears running down her cheeks with so much 19 in her heart that she couldn't speak. Just then the rifle seemed very 20. Pa had given me the best Christmas of my life.
3.多选题- (共6题)
| A．速度是描述物体运动快慢的物理量，速度大表示物体运动得快 |
| B．速度是描述物体的位置变化快慢的物理量，速度大表示物体位置变化大 |
| C．速度越大，位置变化越快，位移也就越大 |
| D．速度是矢量，速率是标量 |
| A．火车以76 km/h的速度通过南京长江大桥 |
| B．子弹以600 m/s的速度从枪口射出 |
| C．公路上雷达测速仪测得一卡车速度是56 km/h |
| D．物体在第2 s末的速度是4 m/s |
A. 乙质点的速率大于甲质点的速率
B. 因为＋2＞－4，所以甲质点的速度大于乙质点的速度
C. 这里的正、负号的物理意义是表示运动的方向
D. 若甲、乙两质点同时由同一点出发，则10s后甲、乙两质点相距60m
| A．三个质点从N到M的平均速度相同 |
| B．B质点从N到M的平均速度方向与任意时刻的瞬时速度方向相同 |
| C．三个质点平均速度的方向不可能相同 |
| D．三个质点的瞬时速度有可能相同 |
| A．百米赛跑中，8 s末的速度为12.5 m/s |
| B．百米赛跑中，50 m处的速度为10 m/s |
| C．汽车在一百米内的速度为8 m/s |
| D．子弹出枪口时的速度为800 m/s |
| A．物体在第1s内的位移为4m |
| B．物体在第5s内的位移为8m |
| C．物体在前5s内的位移为8m |
| D．物体在后5s内的位移为16m |
4.填空题- (共3题)
时间内做匀速运动的速度大小为60 m/s，接着
时间内做匀速运动的速度大小为48m/s ，则整个时间段内的平均速度大小为________m/s；若轿车在前一半位移内平均速度大小为60m/s，后一半位移内平均速度为40m/s，则全程平均速度大小为__________m/s .5.解答题- (共2题)
m/s＝25 m/s，请问上述解法正确吗？为什么？应该如何解？-
【1】题量占比
单选题:(13道)
选择题:(2道)
多选题:(6道)
填空题:(3道)
解答题:(2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：8
7星难题：0
8星难题：16
9星难题：0