中学生网络课堂本课配套习题挑战模式1/5
单选题
难度系数：
1.
雅典奥运会上，我国年轻的跨栏名将刘翔，在男子110m栏决赛中，以12.91s的成绩打破了奥运会记录，勇夺冠军. 他在上述全程的平均速度约为（ ）
| A: 7.7m/s |
| B: 8.5m/s |
| C: 10m/s |
| D: 11m/s |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5qC55o2u6YCf5bqm5YWs5byPdj08aW1nIHNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMTMvQUMvckJBQ0UxTUdzMmlqZk9BWkFBQUJORWNUaXBvMzMxLnBuZyIgZGF0YS1ja2Utc2F2ZWQtc3JjPSJodHRwczovL3AyLnFpbmdndW8uY29tL0cxL00wMC8xMy9BQy9yQkFDRTFNR3MyaWpmT0FaQUFBQk5FY1RpcG8zMzEucG5nIiBoZWlnaHQ9IjUyIiB3aWR0aD0iNiI+5bCx5Y+v6Kej562U5q2k6aKYPC9wPg==
- 答案：Qg==
PGRpdj7moLnmja7pgJ/luqblhazlvI92PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0YwL0VCL3JCQUNGRk1HczJpejc4VUxBQUFEQWdGT2Z0azY1NC5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRjAvRUIvckJBQ0ZGTUdzMml6NzhVTEFBQURBZ0ZPZnRrNjU0LnBuZyIgaGVpZ2h0PSI1MiIgd2lkdGg9IjEzNiI+OC41bS9z77yMQumAiemhueato+ehrjxicj48L2Rpdj48ZGl2Pjxicj48L2Rpdj4=
本课配套习题挑战模式2/5
单选题
难度系数：
2.运动会上，100m决赛，中间过程张明落后于王亮，冲刺阶段张明加速追赶，结果他们同时到达终点. 关于全过程中的平均速度，下列说法中正确的是（ ）
| A: 张明的平均速度比王亮的平均速度大 |
| B: 张明的平均速度比王亮的平均速度小 |
| C: 二者的平均速度相等 |
| D: 不是匀速直线运动，无法比较 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOS4pOS6uui3keeahOaAu+i3r+eoi+ebuOWQjO+8jOaJgOeUqOaXtumXtOebuOWQjO+8jOagueaNruWFrOW8jzxpPlY8L2k+77ydPGltZyB3aWR0aD03IGhlaWdodD01MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzEzL0FDL3JCQUNFMU1HczIzekU1dGtBQUFCUUgwczRDdzc3MC5wbmciPizlj6/nn6XvvIzkuKTkurrlubPlnYfpgJ/luqbnm7jnrYk=
- 答案：Qw==
PGRpdj7kuKTkurrot5HnmoTmgLvot6/nqIvnm7jlkIzvvIzmiYDnlKjml7bpl7Tnm7jlkIzvvIzmoLnmja7lhazlvI88aW1nIHdpZHRoPTM4IGhlaWdodD01MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0YwL0VCL3JCQUNGRk1HczIzUXczYzNBQUFCa2xRRWFyYzA5MC5wbmciPizlj6/nn6XvvIzkuKTkurrlubPlnYfpgJ/luqbnm7jnrYnvvIxD6YCJ6aG55q2j56GuPC9kaXY+
本课配套习题挑战模式3/5
单选题
难度系数：
3.在学校运动会上，小明参加的项目是百米赛跑. 起跑后，小明越跑越快，最终以12.5s的优异成绩获得冠军. 关于上述小明的百米赛跑过程，下列说法正确的是（ ）
| A: 小明在前50m一定用了6.25s |
| B: 小明每秒钟通过的路程都是8m |
| C: 小明的平均速度是8m/s |
| D: 小明的平均速度是8km/h |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeUsemimOaEj+WPr+efpe+8jOWwj+aYjuWPguWKoOeahOmhueebruaYr+eZvuexs+i1m+i3ke+8jOWboOatpOi3r+eoi3M9MTAwbe+8jOaJgOeUqOaXtumXtHQ9MTIuNXM=
- 提示2：IOaJgOS7peWFqOeoi+eahOW5s+Wdh+mAn+W6puS4uu+8mnY9PGltZyB3aWR0aD03IGhlaWdodD01MiBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwLzEzL0FDL3JCQUNFMU1HczIzekU1dGtBQUFCUUgwczRDdzc3MC5wbmciPj08aW1nIHdpZHRoPTI0IGhlaWdodD01MiBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwL0YwL0VCL3JCQUNGRk1HczNTRHpiNjZBQUFCamxzRUNCZzcxMS5wbmciPj04bS9z5Zug5q2kQ+espuWQiOmimOaEj++8jETkuI3nrKblkIjpopjmhI8=
- 提示3：IOWwj+aYjuWcqOaVtOS4queZvuexs+avlOi1m+S4reWBmuWIsOaYr+WPmOmAn+ebtOe6v+i/kOWKqO+8jOWboOatpEHjgIFC5LiN56ym5ZCI6aKY5oSP
- 答案：Qw==
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
本课配套习题挑战模式4/5
多选题
难度系数：
4.
一物体做变速直线运动，在前2s内通过的路程是8m，在后3s内通过的路程是27m. 则该物体（ ）
| A: 在前2s内运动的平均速度是4m/s |
| B: 在后3s内运动的平均速度是9m/s |
| C: 在整个5s时间内的平均速度是6.5m/s |
| D: 在整个35m路程上的平均速度是7m/s |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5bmz5Z2H6YCf5bqmPGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzEzL0FDL3JCQUNFMU1HczRXU3k1VldBQUFCa1JvVEVJTTYwMS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMTMvQUMvckJBQ0UxTUdzNFdTeTVWV0FBQUJrUm9URUlNNjAxLnBuZyIgaGVpZ2h0PSI1MiIgd2lkdGg9IjM4Ij7vvIxz44CBdOS4uuWvueW6lOeahOi3r+eoi+WSjOaXtumXtDwvcD4=
- 提示2：PHA+5pW05Liq6Lev56iL55qE5bmz5Z2H6YCf5bqmIFY9PGltZyBzcmM9Imh0dHBzOi8vcDEucWluZ2d1by5jb20vRzEvTTAwL0YwL0VCL3JCQUNGRk1HczRYQXp1Z1JBQUFCdndqZ2dVODg1MS5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMS5xaW5nZ3VvLmNvbS9HMS9NMDAvRjAvRUIvckJBQ0ZGTUdzNFhBenVnUkFBQUJ2d2pnZ1U4ODUxLnBuZyIgaGVpZ2h0PSI1MiIgd2lkdGg9IjE3Ij48YnI+PC9wPg==
- 答案：QSxCLEQ=
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.
小明在测小车的平均速度实验中，设计了如图所示的实验装置：图中刻度尺的分度值为mm；小车到达A．B．C三处时电子表显示的时间（分别表示"小时：分：秒"）如图所示；则小车在AB两点间的平均速度和AC两点间的平均速度相差多少（ ）
| A: 0.3m/s |
| B: 0.03m/s |
| C: 0.01m/s |
| D: 0.02m/s |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5rOo5oSP5Y2V5L2N5o2i566X77yMQULmrrXplb/luqbkuLowLjA0bSxBQ+autemVv+W6puS4ujAuMDltPGJyPjwvcD4=
- 提示2：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
- 提示3：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
- 答案：Qw==
PHA+PGltZyBzcmM9Imh0dHBzOi8vcDIucWluZ2d1by5jb20vRzEvTTAwLzIxL0EwL3JCQUNGRk5fQ3RqUUl1WWZBQUFTeUQ2ekhiSTg4Ni5wbmciIGRhdGEtY2tlLXNhdmVkLXNyYz0iaHR0cHM6Ly9wMi5xaW5nZ3VvLmNvbS9HMS9NMDAvMjEvQTAvckJBQ0ZGTl9DdGpRSXVZZkFBQVN5RDZ6SGJJODg2LnBuZyIgYWx0PSIiIHN0eWxlPSJ3aWR0aDogNDkycHg7IGhlaWdodDogMTAzcHg7Ij48YnI+PC9wPg==
