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.如图所示，把三个完全相同的实心铝球分别投入三个盛有水，盐水，水银的容器内，则平衡后所受浮力最大的铝球应该是（ ）
| A: 在水中的铝球 |
| B: 在盐水中的铝球 |
| C: 在水银中的铝球 |
| D: 无法判断 |
一次做对，真牛！
+5奖励规则>
- 提示1：5Zug5Li66ZOd55CD5rKJ5Yiw55uQ5rC05ZKM5rC055qE5bqV6YOo77yM6ZOd55CD5Zyo5rC05ZKM55uQ5rC05Lit5Y+X5Yiw55qE5rWu5Yqb6YO95bCP5LqO6ZOd55CD55qE6YeN5Yqb77yM5omA5LulRjxzdWI+5rWuMTwvc3ViPu+8nEfvvIxGPHN1Yj7mta4yPC9zdWI+77ycR++8jA==
- 提示2：5Zug5Li6RjxzdWI+5rWuPC9zdWI+Pc+BPHN1Yj7mtrI8L3N1Yj5nVjxzdWI+5o6SPC9zdWI+77yM6ZOd55CD6YO95rW45rKh5Zyo55uQ5rC05ZKM5rC05Lit77yM5o6S5byA5ray5L2T55qE5L2T56ev55u45ZCM77yM5rC055qE5a+G5bqm5bCP5LqO55uQ5rC055qE5a+G5bqm77yM5omA5LulRjxzdWI+5rWuMTwvc3ViPu+8nEY8c3ViPua1rjI8L3N1Yj7vvJs=
- 答案：Qw==
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
本课配套习题挑战模式2/5
单选题
难度系数：
2.一空心铁球漂浮在盐水中，当向盐水中倒人一点清水后，空心铁球在盐水中将（ ）
| A: 上浮一点 |
| B: 保持原位置 |
| C: 下沉一点 |
| D: 无法判断 |
一次做对，真牛！
+5奖励规则>
- 提示1：5qC55o2u6Zi/5Z+657Gz5b635Y6f55CG77yM5ray5L2T55qE5a+G5bqm5Y+Y5bCP77yM5L2G5piv6ZOB55CD5omA5Y+X55qE5rWu5Yqb5LiN5Y+Y44CC
- 答案：Qw==
4oi156m65b+D6ZOB55CD5ryC5rWuPGJyPuKItEY8c3ViPua1rjwvc3ViPj3PgTxzdWI+55uQ5rC0PC9zdWI+djxzdWI+5o6SPC9zdWI+Zz1HPGJyPuW9k+WKoOa4heawtOaXtu+8jM+BPHN1Yj7nm5DmsLQ8L3N1Yj7lj5jlsI/vvIzkvYbov5jmmK/mvILmta7vvIzlj5fmta7lipvkuI3lj5g8YnI+4oi0djxzdWI+5o6SPC9zdWI+5Y+Y5aSn77yM5Y2z5LiL5rKJ5LiA54K5PGJyPuaVhemAiUPvvI4=
本课配套习题挑战模式3/5
单选题
难度系数：
3.A、B两个同样的实心铁球，A沉于水底，B浮于水银液面上，则两球受到浮力的FA、FB的大小关系为（ ）
| A: FA＞FB |
| B: FA＜FB |
| C: FA=FB |
| D: 不能确定 |
一次做对，真牛！
+5奖励规则>
- 提示1：4oi0RzxzdWI+QTwvc3ViPj1HPHN1Yj5CPC9zdWI+77yMPGJyPuKItUHmsonkuo7msLTlupXvvIw8YnI+4oi0RjxzdWI+QTwvc3ViPu+8nEc8c3ViPkE8L3N1Yj7vvIw=
- 答案：Qg==
4oi1QeOAgULkuKTkuKrlkIzmoLfnmoTlrp7lv4Ppk4HnkIPvvIw8YnI+4oi0RzxzdWI+QTwvc3ViPj1HPHN1Yj5CPC9zdWI+77yMPGJyPuKItUHmsonkuo7msLTlupXvvIw8YnI+4oi0RjxzdWI+QTwvc3ViPu+8nEc8c3ViPkE8L3N1Yj7vvIw8YnI+4oi1Qua8gua1ruWcqOawtOmTtua2sumdouS4iu+8jDxicj7iiLRGPHN1Yj5CPC9zdWI+PUc8c3ViPkI8L3N1Yj7vvIw8YnI+4oi0RjxzdWI+QTwvc3ViPu+8nEY8c3ViPkI8L3N1Yj7vvI48YnI+5pWF6YCJQu+8jg==
本课配套习题挑战模式4/5
单选题
难度系数：
4.将质量相等的铁块和木块放入水中，待静止后，木块浮在水面上，铁块沉入水底，就此现象，下列分析正确的是（ ）
| A: 木块受到浮力，铁块不受浮力 |
| B: 木块受到的浮力小于铁块受到的浮力 |
| C: 木块浮在水面上，所受浮力大于自身的重力 |
| D: 铁块沉入水底，所受浮力小于自身的重力 |
一次做对，真牛！
+5奖励规则>
- 提示1：6ZOB5Z2X5rKJ5YWl5rC05bqV77yM5piv5Zug5Li66ZOB5Z2X5Y+X5Yiw55qE5rWu5Yqb5bCP5LqO5a6D55qE6YeN5Yqb
- 答案：RA==
QeOAgeWwhui0qOmHj+ebuOetieeahOmTgeWdl+WSjOacqOWdl+aUvuWFpeawtOS4re+8jOmTgeWdl+WSjOacqOWdl+mDveS8muWPl+WIsOawtOeahOa1ruWKm+S9nOeUqO+8juaJgOS7pUHor7Tms5XplJnor6/vvI48YnI+QuOAgei0qOmHj+ebuOetieeahOmTgeWdl+WSjOacqOWdl++8jOWFtumHjeWKm+S5n+ebuOetie+8jOaUvuWFpeawtOS4re+8jOW+hemdmeatouWQju+8jOacqOWdl+a1ruWcqOawtOmdouS4iu+8jOacqOWdl+WPl+WIsOeahOa1ruWKm+etieS6juacqOWdl+eahOmHjeWKm++8m+mTgeWdl+ayieWFpeawtOW6le+8jOaYr+WboOS4uumTgeWdl+WPl+WIsOeahOa1ruWKm+Wwj+S6juWug+eahOmHjeWKm++8juaJgOS7pemTgeWdl+WPl+WIsOeahOa1ruWKm+Wwj+S6juacqOWdl+WPl+WIsOeahOa1ruWKm++8jOaJgOS7pULor7Tms5XplJnor6/vvI48YnI+Q+OAgeacqOWdl+a8gua1ru+8jOaJgOS7peacqOWdl+WPl+WIsOeahOa1ruWKm+etieS6juacqOWdl+eahOmHjeWKm++8jOaJgOS7pUPor7Tms5XplJnor6/vvI48YnI+ROOAgemTgeWdl+ayieWFpeawtOW6le+8jOaYr+WboOS4uumTgeWdl+WPl+WIsOeahOa1ruWKm+Wwj+S6juWug+eahOmHjeWKm++8juaJgOS7pUTor7Tms5XmraPnoa7vvI48YnI+5pWF6YCJRO+8jg==
本课配套习题挑战模式5/5
单选题
难度系数：
5.在研究物体浮沉条件实验中，将鸡蛋放入装有水的玻璃杯中后下沉入水底．为了使鸡蛋上浮，可采用的措施是向杯中加入适量的（ ）
| A: 热水 |
| B: 酒精 |
| C: 食盐 |
| D: 冰水 |
一次做对，真牛！
+5奖励规则>
- 提示1：6bih6JuL5pS+5YWl6KOF5pyJ5rC055qE546755KD5p2v5Lit5ZCO5LiL5rKJ5YWl5rC05bqV77yO6K+05piO6bih6JuL5Y+X5Yiw55qE5rWu5Yqb5bCP5LqO6bih6JuL55qE6YeN5Yqb
- 提示2：6KaB5L2/6bih6JuL5LiK5rWu77yM6ZyA6KaB5aKe5aSn5rWu5Yqb77yO5qC55o2u5YWs5byPRjxzdWI+5rWuPC9zdWI+Pc+BPHN1Yj7mtrI8L3N1Yj5nVjxzdWI+5o6SPC9zdWI+77yM5Zyo5o6S5byA5ray5L2T5L2T56ev5LiN5Y+Y55qE5oOF5Ya15LiL77yM5aKe5aSn5ray5L2T55qE5a+G5bqm5Y+v5Lul5aKe5aSn5rWu5Yqb77yO
- 答案：Qw==
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
