初二物理 (人教版下册)
物体的浮沉条件及应用
本课配套习题挑战模式1/5
单选题
难度系数:
1.把密度为0.6×103kg/m3、重为12N的木块放入水中,当它静止时所处的状态及受到的浮力大小分别是( )
A: 漂浮,F浮>12N |
B: 漂浮,F浮=12N |
C: 沉底,F浮<12N |
D: 沉底,F浮=12N |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOmAmui/h+a2suS9k+WSjOeJqeS9k+WvhuW6puWFs+ezu+WIpOaWreeJqeS9k+eKtuaAgQ==
- 提示2:IOagueaNruayiea1rueKtuaAgeaxgua1ruWKmw==
- 答案:Qg==
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本课配套习题挑战模式2/5
单选题
难度系数:
2.在一支平底试管内装入适量的铁砂,然后先后放入装有甲、乙两种不同液体的烧杯里,如图所示. 下列说法正确的是( )
A: 试管在甲液体中受到的浮力较大 |
B: 试管在乙液体中受到的浮力较大 |
C: 试管在甲乙两种液体中受到浮力相等 |
D: 甲的液体密度大于乙的液体密度 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmDveWkhOS6jua8gua1ru+8jOa1ruWKm+etieS6jumHjeWKmw==
- 提示2:IOa1uOayoea2suS9k+S9k+enr+i2iuWkp+a2suS9k+WvhuW6pui2iuWwj+OAgg==
- 答案:Qw==
6YO95aSE5LqO5ryC5rWu77yM5rWu5Yqb562J5LqO6YeN5Yqb77yM5omA5Lul5Zyo5Lik5Lit5ray5L2T5Lit5Y+X5Yiw55qE5rWu5Yqb5aSn5bCP55u4562J77yM5rWu5Yqb55u4562J77yM5rW45rKh5L2T56ev6LaK5aSn5ray5L2T5a+G5bqm6LaK5bCP44CC
本课配套习题挑战模式3/5
单选题
难度系数:
3.将一个由某种材料制成的空心球放入甲液体中时,小球漂浮:当把它放入乙液体中时,小球悬浮. 则下列判断不正确的是( )
A: 球在甲、乙两种液体中受到的浮力相等 |
B: 甲液体的密度大于乙液体的密度 |
C: 该材料的密度一定大于乙液体的密度 |
D: 该材料的密度一定小于甲液体的密度 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmAmui/h+a2suS9k+WSjOeJqeS9k+WvhuW6puWFs+ezu+WIpOaWreeJqeS9k+eKtuaAgQ==
- 提示2:IOagueaNruayiea1rueKtuaAgeWIpOaWrea1ruWKm+Wkp+Wwjw==
- 答案:RA==
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
本课配套习题挑战模式4/5
单选题
难度系数:
4.将同一个鸡蛋先后放入甲、乙两杯盐水中,鸡蛋在甲杯中处于漂浮状态,在乙杯中处于悬浮状态. 下列判断正确的是( )
A: 甲杯中盐水的密度大于乙杯中盐水的密度 |
B: 甲杯中盐水的密度小于乙杯中盐水的密度 |
C: 鸡蛋在甲杯中受到的浮力大于在乙杯中受到的浮力 |
D: 鸡蛋在甲杯中受到的浮力小于在乙杯中受到的浮力 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOmAmui/h+a2suS9k+WSjOeJqeS9k+WvhuW6puWFs+ezu+WIpOaWreeJqeS9k+eKtuaAgQ==
- 提示2:IOagueaNruayiea1rueKtuaAgeWIpOaWrea1ruWKm+Wkp+Wwjw==
- 答案:QQ==
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本课配套习题挑战模式5/5
单选题
难度系数:
5.一个球先后在盛有不同液体的容器A、B、C、D中保持静止状态,受到浮力分别是F1,F2,F3,F4.,如图,小球受到浮力大小关系表述正确的一项是( )
A: F1<F2<F3<F4 |
B: F1>F2>F3>F4 |
C: F1>F2=F3>F4 |
D: F1=F2=F3>F4 |
一次做对,真牛!
+5奖励规则>
- 提示1:IOWFiOWIpOaWreWQhOS4queKtuaAgeS4i+a1ruWKm+WSjOmHjeWKm+WFs+ezuw==
- 提示2:IOa8gua1ruWSjOaCrOa1rua1ruWKm+etieS6jumHjeWKm++8jA==
- 提示3:IOayieW6lea1ruWKm+Wwj+S6jumHjeWKmw==
- 答案:RA==
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