
第八章 物质常见的性质
Authored by Tan Jia Sin
Science
7th Grade
Used 12+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
图中为海波从液体冷却到固体时的温度与时间变化图像。
在图中的哪一个点,海波是固体和液体的混合物?
A
B
C
D
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪个图象表示非晶体物质的温度在熔化过程中随时间而变化的关系?
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在某物体凝固的过程中,
没有热能的变化。
物质的温度下降。
物质释放热能。
物质从周围环境中吸收热能。
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在0°C以及标准大气压下,水的哪个状态不可能存在?
gu'tai
ye'tai
qi'tai
gu'ye'hun'he'wu
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在炎热天时,你的冷气机坏了,可以在房里放置一桶与室温相同的水使房间凉快些。这是因为
水蒸发成水蒸气时,吸掉了房间里的热。
水蒸发成水蒸气时,释放了大量的热。
水凝固成冰,吸掉了房间里的热。
水凝固成冰,释放了大量的热。
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
戴着眼镜喝热汤时,镜片经常会变得模糊不清,这是因为
水蒸气吸附在镜片上。
镜片上的污垢遇到热气而显现出来。
空气中有不明的污染物附在镜片上。
水蒸气遇冷凝固成小水珠附在镜片上。
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
将一支温度计从装有酒精的瓶子中抽出时,温度计示数将
上升
下降
先上升后下降
先下降后上升
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