
初中物理选择题
Authored by 思奇 吴
Physics
7th Grade
10 Questions
Used 2+ times

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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列物质中,均属于晶体的一组是( )
玻璃、食盐
铁、松香
塑料、蜂蜡
冰、铜
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
把一盆0℃的水放到﹣5℃的房间里,在水完全结成冰之前,这盆冰水的温度( )
等于﹣5℃
等于0℃
介于0~﹣5℃之间
无法确定
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小橙在收到快递海鲜包装中发现装有冰袋,冰袋在海鲜运输中所起到的作用是( )
熔化吸热
凝固放热
汽化吸热
升华吸热
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列事例中,能使蒸发加快的措施是( )
用地膜覆盖农田
买来的蔬菜放在冰箱中保存
洗手后使用自动烘手机
超市里新鲜水果经常套个保鲜袋
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
冬天,人说话时,可以看到口里呼出"白气";夏天,打开冰箱时,也可以看到从冰箱里冲出"白气"。下列对这两次"白气"产生的原因,分析正确的是( )
口里呼出的"白气"是口里呼出气体中的水蒸气汽化产生的
口里呼出的"白气"是口里呼出气体中的水蒸气液化产生的
冰箱里冲出的"白气"是冰箱里的气体中的水蒸气液化产生的
冰箱里冲出的"白气"是冰箱里的气体中的水蒸气汽化产生的
6.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
下列关于物态变化的说法中正确的是( )
夏天在教室地面洒水降温,利用水蒸发吸热
北方冬天在菜窖里放几桶水,利用水凝固吸热
冬天户外冰冻的衣服也会干,是汽化现象
舞台上"烟雾"是"干冰"升华形成的二氧化碳气
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
"赏中华诗词、寻文化基因、品生活之美"的诗词类节目深受观众的青睐。对下列古诗文中涉及的热现象进行解释,其中错误的是( )
"月落乌啼霜满天,江枫渔火对愁眠。"霜的形成是凝华现象
"雾凇沆砀,天与云与山与水,上下一白。"雾凇的形成是凝华现象
"青青园中葵,朝露待日晞。"露在日出后逐渐消失是汽化现象
"腾蛇乘雾,终为土灰。"雾的形成是汽化现象
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