1 m 3 的水结成冰后()。
初二上 2.4 水的密度的反常变化

Quiz
•
Science
•
9th Grade
•
Medium
余春玲老师 余春玲老师
Used 23+ times
FREE Resource
7 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
体积变大,密度变小
体积变小,密度变大
体积和密度均不发生变化
变化情况无法确定
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
水在4℃时体积最小而密度最大,我们说水的密度为1.0 x 103 kg /m3,实际就是指4℃时的密度。
对
错
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
水温从 4℃继续下降至0℃的过程中,水的体积变( ),密度变( )。
大,小
大,大
小,大
小,小
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
水温从10℃降低到4℃的过程中,体积变( ),密度变( )。
小,大
大,大
大,小
小,小
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
水既是一种资源,也是一种工具,古代人利用水来开山采石,即在冬季的白天给石头打个洞,再往洞里灌满水并封住洞口,等到晚上温度下降,水结冰后石头就裂开了。下列有关说法正确的是( )。
石头裂开后,其密度变小
石头裂开后,其密度变大
该方法利用水结冰后,水的质量变大,水的体积增大而使石头裂开
该方法利用水结冰后,水的质量不变,水的体积增大而使石头裂开
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