
初二上 2.2 密度知识的应用
Authored by 余春玲老师 余春玲老师
Science
8th Grade
Used 9+ times

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7 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
3支规格相同的试管竖直放置,其内分别装有质量相等的水、酒精和盐水,则液面最高的液体是( )。
酒精
水
盐水
无法确定
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
运动会发奖用的金、银、铜制成的面积,图案及形状完全相同的奖牌,其中奖牌质量最大的是( )。(ρ金>ρ银>ρ铜)
金牌
银牌
铜牌
无法确定
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
1立方米的石蜡和1立方米的铁条,二者的质量相同。
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
液态的纯水和冰块皆由水分子构成,故二者的密度相同。
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
纯水的密度为1g/cm3,其含义是体积为1立方厘米的容器里,装有有的水的质量为1g。
对
错
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
冰块熔化成水后,其密度变大。
对
错
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
如图中,A、B为两只相同的烧杯,分别盛有相同质量的水、和浓硫酸,则 A杯子盛的液体是( )。
水
浓硫酸
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