
物質的變化與組成
Quiz
•
Science
•
6th Grade
•
Medium
蔡欣芸 中山國小
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11 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
如何把凹陷的乒乓球變回原狀?
放在冰水中
放在雪櫃中
放在熱水中
用手擠壓
2.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
在天橋的接口處留有空隙有甚麼作用?
讓積水流出來,防止水浸
讓車輛減速,防止交通意外
防止天橋受熱而互相擠壓,造成爆裂
3.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
為甚麼鋪設鐵軌時要留有空隙?
避免鐵軌受熱而扭曲變形
讓火車容易減速停止行駛
讓雨水容易流出鐵軌外
4.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
為甚麼瓷磚之間要留有空隙?
防止瓷磚受熱爆裂
因為這樣較美觀
防止瓷磚遇冷造成變形
5.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
哪個方法較容易扭開瓶蓋?
用報紙包住扭開
用熱水浸一浸
用力扭開
拍打瓶身
6.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
用哪些方法會容易剝掉雞蛋殼?
放在熱水浸一會兒
用毛巾包著敲碎
放在冷水浸一會兒
用碗輕輕敲碎
7.
MULTIPLE CHOICE QUESTION
20 sec • 10 pts
為甚麼架空電纜是輕微下 垂的?
因為小鳥站在電纜休息而導致下垂
因為電流經過電纜而造成下垂
因為要防止電纜遇冷縮短而造成損毀
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