
密度練習題003_難題挑戰
Quiz
•
Science
•
7th Grade
•
Practice Problem
•
Medium
鄭之偉 鄭之偉
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12 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
已知冰的密度為0.9 g/cm3,今取180公克的冰投入200公克的水中,當冰完全熔化後,杯中水的總體積為多少cm3?
360
380
400
422.2
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
某金屬塊的測量數據如圖,哪兩個數據可推測出密度?
20.0 cm3和158.0 g
158.0 g和48.0 cm2
0.113 cal/g.℃和25.0℃
0.113 cal/g.℃和20.0 cm3
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小雨將盛有18℃水的杯子放入冷凍庫後,水結成-2℃的冰。下列關於杯子中水變成冰的敘述何者正確?
密度變小
重量減少
體積變小
質量減少
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甲、乙兩物體在天平上維持平衡,請判斷下列何者正確
甲的密度大於乙
甲的質量小於乙
甲的體積等於乙
甲、乙屬於同一種物質
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
A、B、C、D四個金屬球,何者與其他三個材質不同?
A
B
C
D
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
利用一個質量為300g的玻璃瓶,設計可測量甲液體密度的實驗,其步驟如下:
一、將玻璃瓶裝滿水,稱得總質量為900g
二、倒掉瓶中的水,待玻璃瓶乾後,改裝滿甲液體,稱得總質量為1800g
由上述實驗步驟,可推算甲液體的密度為下列何者?
1.5 g/cm3
2.0 g/cm3
2.5 g/cm3
3.0 g/cm3
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
阿玉的媽媽拿出一條項鍊,並告訴他這項鍊是由某金屬打造成的,於是阿玉就做了一個實驗,首先他用電子天平測其質量為21公克,再把它放入盛水20.0毫升的量筒中,見它完全沉入水中,且水面上升至22.0毫升,由此可知此項鍊的材質為何?(金、銀、銅及鋁的密度分別為19.3、10.5、8.9和2.7 g/cm3)
金
銀
銅
鋁
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