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B3-C1,C2

Authored by chungtsen chen

Chemistry, Physics

8th Grade

Used 2+ times

B3-C1,C2
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17 questions

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1.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

使用歸零後的等臂天平來測量物體的質量,當達平衡時,右盤中有一個10克的砝碼,三個2克的砝碼,且騎碼在天平橫樑的第十五個刻度線上。假設天平的橫梁上每一刻度代表0.1克,則左盤待測物體的質量為多少克?

17.50
17.55
15.50
15.55

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

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

3.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

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

4.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

將一密度為8.9 g/cm3、體積為90 cm3的均勻銅塊,分割成甲、乙、丙三塊較小的銅塊。若測得甲、乙、丙三個銅塊的體積分別為20 cm330 cm340 cm3,且甲、乙、丙三銅塊的密度分別為d、d、d,則d:d:d為下列何者?

2:3:4 
4:3:2
1:1:1 
6:4:3

5.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

0.5 g/cm3
0.6 g/cm3
0.8 g/cm3
1.0 g/cm3

6.

MULTIPLE CHOICE QUESTION

1 min • 1 pt

Media Image

0.3
0.8
1.0
3.0

7.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

在室溫下,小方利用一個質量為300 g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900 g
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1800 g
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

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