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力與壓力-1

Authored by Telltai Hsu

Physics, Science

7th - 9th Grade

Used 6+ times

力與壓力-1
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10 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

在一條原長 10 cm 的彈簧下方吊 掛一個質量未知的物體甲,彈簧的總長度變為 12 cm。若改掛一個 60g 的砝碼,則彈簧的總長度變為 16 cm。若移除物體甲與砝碼後,彈簧恢復原長,則物體甲的質 量應為多少?

10 g

20 g

30 g

40 g

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

甲、乙、丙三條完全相同的彈簧懸掛在一根水平橫桿上, 甲彈簧無懸掛物品,乙彈簧懸掛重量為 W1 公克重的砝碼,丙 彈簧懸掛重量為W1公克重及W2公克重的砝碼,靜止平衡時, 三者的長度關係如圖(三)所示。若三條彈簧質量均很小忽略不 計,且乙、丙兩彈簧在取下砝碼後,均可恢復原長,由上述 資訊判斷 W1:W2 應為下列何者?

1:2

2:1

2:3

3:2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

質量3公斤的物體,在地球上所受的重力為多少公斤重?

3

1/3

6

9

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

質量5公斤的物體,小昇施2公克重的推力恰可使物體開始移動,試問此物的最大靜摩擦力為多少公克重?

2

3

4

5

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

手握住一枝筆不動,筆與地面垂直,手的握力為30gw,若筆重為20gw,則手與筆之間的摩擦力為多少克重?

10

20

30

40

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

有一物體重10gw,原靜置於桌上,現在在物體兩側分別施以水平20gw與9gw作用力,如圖,發現物體仍然靜止不動,則該物體受到的摩擦力大小為多少gw?

0

1

10

11

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

Media Image

容器裝水如圖,容器器壁所受靜水壓力何點最大?

a

b

c

d

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