五年级科学 - 热胀冷缩
Quiz
•
Science
•
5th Grade
•
Medium

CPing loh
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如何让连个卡在一起的玻璃杯子分开?
把热水倒进X杯子里面
把Y杯子泡在热水里面
把X和Y杯子都泡在杯子里面
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
要怎么做才能拧开瓶盖?
把瓶子整个放进热水里浸泡一阵子
把瓶盖放入热水中浸泡一阵子
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
为什么妈妈要把煮熟的鸡蛋放入冷水中浸泡?
怕烫到手
洗蛋壳
让蛋壳热涨冷缩而容易剥开
让蛋壳自动爆裂
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图3显示装置电线的方式。以下哪项是这种装置方法的原因?
电流能转送得更快
以这种方式装置电线比较省钱
为了避免电线在热天时膨胀而断裂
为了避免电线在冷天时收缩而断裂
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图1显示铁轨之间的空隙。铁轨间的空隙有什么用处?
使火车更轻易地在铁轨上奔驰
使火车可以行驶得更平稳和安全
铁轨在气候冷时有更多的空间收缩
避免铁轨受热膨胀时,因挤压而弯曲
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
“水银最适合用于温度计”
上面是有关水银的资料。针对上述的资料,哪项有关水银灯推断是正确的?
水银的颜色鲜明,容易观察
水银的价格便宜,且容易购得
水銀不含毒素,可安全使用
水銀溫度的反应敏感,能准确反映溫度
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
大伙不能打乒乓因为小文把乒乓球踩瘪了。
下列哪些东西可以解决问题?
本生灯和火
柴蜡烛和烧杯
烧杯和沸水
气泵和塑料袋
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