
热
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Science
7th - 9th Grade
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20 questions
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1.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
关于热传递,下列说法中正确的是
热传递就是温度的传递
物体间不相互接触也会发生热传递
热传递都要通过媒介物而进行的
在同一物体中不可能发生热传递
2.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
等质量的铁块和铜块相互接触后,它们之间没有发生热传递,这是因为它们具有相同的
质量
热量
温度
比热
3.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
冬天用手摸室外的铁块和木块,总感到铁块比木块冷些,这是因为
铁块的热胀冷缩比木块大
铁块的热传导本领比木块大
铁块的热辐射本领比木块大
铁块的温度比木块低
4.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
用酒精灯在试管 C 处加热(如图所示),则试管内的水
A 处先沸腾
B 处先沸腾
C 处先沸腾
A、B、C 三处同时沸腾
5.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
大热天,穿浅色衣服比穿深色衣服凉快些,这是因为
浅色衣服是热的不良导体
浅色衣服能吸收人体的热量
浅色衣服能减少热的对流
浅色衣服对太阳热辐射的吸收本领比深色衣服弱
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
冬天,手放在火炉上方取暖,热传递的主要方式是
传导、对流
对流、辐射
传导、辐射
传导、对流、辐射
7.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
下列哪一项叙述是不正确的?
银传热比铁快
保温瓶内的真空是防止因传导和对流损失热能
用铝漆来涂储油箱是为了使油箱少吸收辐射热
表面白色的物体较表面黑色的物体更能吸收及发出辐射热
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