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.
下列现象中，不能用惯性知识解释的是（ ）
| A: 实心铁球从高处自由落下 |
| B: 人走路被障碍物绊倒时会向前倾倒 |
| C: 锤头松了，把锤柄的后端在物体上撞击几下，锤头就能紧套在锤柄上 |
| D: 子弹从枪膛里射出后，虽然不再受到火药的推力，但是仍然向前运动 |
一次做对，真牛！
+5奖励规则>
- 提示1：PHA+5oOv5oCn5piv5LiA5YiH54mp5L2T6YO95YW35pyJ55qE5L+d5oyB5Y6f5p2l6L+Q5Yqo54q25oCB5LiN5Y+Y55qE5oCn6LSoPC9wPg==
- 答案：QQ==
PGRpdj5B44CB6ZOB55CD6Ieq55Sx6JC95LiL5a6e6ZmF5LiK5piv5Y+X5Yiw55qE6YeN5Yqb55qE5L2c55So77yM5Zug5q2k5LiN5piv5oOv5oCn6YCg5oiQ55qE77yM5LiN5ZCI6aKY5oSP77ybQuOAgUPjgIFE44CB5Lq65ZCR5YmN5YC+5YCS44CB6ZSk5aS05aWX57Sn6ZSk5p+E44CB5a2Q5by55ZCR5YmN6L+Q5Yqo6YO95piv5Zug5Li65a6D5Lus5YW35pyJ5oOv5oCn77yM5LuN6KaB5L+d5oyB5Y6f5p2l55qE6L+Q5Yqo54q25oCB77yM5omA5Lul5omN5Lqn55Sf5LqG5LiK6L+w546w6LGh77yM5Z2H56ym5ZCI6aKY5oSPPGJyPjwvZGl2Pg==
本课配套习题挑战模式2/5
单选题
难度系数：
2.下列现象能用惯性知识解释的是（ ）
| A: 运动的物体由于惯性会慢慢停下来 |
| B: 跳高运动员跳过杆后从最高点落向软垫 |
| C: 足球撞到门框上被反弹 |
| D: 箭被运动员射出后仍向前运动 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOWKm+eahOS9nOeUqOaViOaenOacieS4pOS4qu+8muWNs+aUueWPmOeJqeS9k+eahOW9oueKtuaIluaUueWPmOeJqeS9kw0K55qE6L+Q5Yqo54q25oCB77yb
- 提示2：IOmHjeWKm+eahOaWueWQkeaYr+erluebtOWQkeS4i+eahO+8jOaVheaKm+WcqOmrmOepuueahOeJqeS9k+eUseS6jumHjeWKm+eahOWOn+WboOS8muWQkeS4i+i/kOWKqO+8mw==
- 提示3：IOaDr+aAp+aMh+eahOaYr+eJqeS9k+S/neaMgeWOn+adpei/kOWKqOeKtuaAgeS4jeWPmOeahOaAp+i0qA==
- 答案：RA==
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
本课配套习题挑战模式3/5
单选题
难度系数：
3.下列现象不能用惯性现象解释的是（ ）
| A: 苹果从树上自由下落 |
| B: 拍打衣服时灰尘与衣服分开 |
| C: 踢出去的足球在地面上滚动 |
| D: 紧急刹车时人容易向前倾倒 |
一次做对，真牛！
+5奖励规则>
- 提示1：6YeN5Yqb55qE5pa55ZCR5oC75piv56uW55u05ZCR5LiL
- 提示2：IOS7u+S9leeJqeS9k+mDveacieS/neaMgeWOn+adpei/kOWKqOeKtuaAgeeahOaAp+i0qA==
- 答案：QQ==
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
本课配套习题挑战模式4/5
单选题
难度系数：
4.2010年广州亚运会精彩纷呈，下列现象不能用惯性知识解释的是（ ）
| A: 箭被运动员射出后仍向前运动 |
| B: 跳高运动员离开地面后仍向上运动 |
| C: 足球撞到门框上被反弹 |
| D: 运动员百米冲刺后不能立即停下来 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOeureiiq+i/kOWKqOWRmOWwhOWHuuWQju+8jOeUseS6juaDr+aAp+S7jeWQkeWJjei/kOWKqOS4gOautei3neemuw==
- 提示2：IOi3s+mrmOi/kOWKqOWRmOemu+W8gOWcsOmdouWQju+8jOeUseS6juaDr+aAp+S7jeWQkeS4iui/kOWKqOS4gOWumumrmOW6pg==
- 提示3：IOi2s+eQg+aSnuWIsOmXqOahhuS4iuiiq+WPjeW8ue+8jOaYr+eUseS6juWPl+WIsOS6humXqOahhumYu+WKm+eahOS9nOeUqOaUueWPmOS6hui2s+eQg+i/kOWKqOeahOaWueWQkQ==
- 提示4：IOi/kOWKqOWRmOeZvuexs+WGsuWIuuWQju+8jOeUseS6juaDr+aAp+S4jeiDveeri+WNs+WBnOS4i+adpe+8jOS7jeWQkeWJjei/kOWKqOS4gOautei3neemuw==
- 答案：Qw==
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
本课配套习题挑战模式5/5
单选题
难度系数：
5.下列现象中，不能用惯性知识解释的是（ ）
| A: 拍打衣服时，灰尘从衣服中脱离出来 |
| B: 人从行驶的车上跳下来容易摔倒 |
| C: 短跑运动员到达终点后不能立即停下来 |
| D: 用力将物体抛出去，物体最终要落到地面上 |
一次做对，真牛！
+5奖励规则>
- 提示1：IOaDr+aAp+aMh+eahOaYr+eJqeS9k+S/neaMgeWOn+adpei/kOWKqOeKtuaAgeS4jeWPmOeahOaAp+i0qA==
- 答案：RA==
PGRpdj5B54Gw5bCY5Y6f5p2l6Z2Z5q2i77yM6KGj5pyN6L+Q5Yqo5ZCO77yM54Gw5bCY55Sx5LqO5oOv5oCn5LuN5L+d5oyB6Z2Z5q2i54q25oCB77yM5pWF54Gw5bCY6ISx56a75Ye65p2lLiA8L2Rpdj48ZGl2PkLkurrljp/mnaXpmo/ovabov5DliqjvvIzokL3lnLDlkI7vvIzohJrlgZzmraLov5DliqjvvIzouqvkvZPnlLHkuo7mg6/mgKfku43kv53mjIHov5DliqjnirbmgIEuIOaVheWuueaYk+aRlOWAki4gPC9kaXY+PGRpdj5D6L+Q5Yqo5ZGY5Yiw6L6+57uI54K55ZCO77yM55Sx5LqO5oOv5oCn5LuN5aSE5LqO6auY6YCf6L+Q5Yqo54q25oCB77yM5pWF5LiN6IO956uL5Y2z5YGc5LiL5p2lLiA8L2Rpdj48ZGl2PkTniankvZPokL3lnLDvvIzmmK/ph43lipvnmoTkvZznlKjnu5PmnpwuIOS4juaDr+aAp+aXoOWFsy4gPC9kaXY+
