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0623 傑競文涵幫

Authored by Anita Wen

Science

8th Grade

Used 3+ times

0623 傑競文涵幫
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12 questions

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1.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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在水平桌面上由左至右放置了甲、乙、丙、丁四個完全相同的木塊,今對四個木塊施以不同的水平力,木塊均靜止不動,如圖所示。下列哪一個木塊所受向左的摩擦力最大

2.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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如附圖所示,於左側放20kgw的重物,右側放置60kgw的重物,則下列有關水壓機的結果何者正確?

兩側靜止無變化

左側下降;右側上升

左側上升;右側下降

文涵最疼我了 ❤

3.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

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OG在實驗室測量大氣壓力時,所量測到的水銀垂直高度為 74 cm,其裝置如圖所示。若他將此裝置移至真空室內,則此裝置之水銀柱垂直高度會變為多少 cm?

76

74

38

0

4.

MULTIPLE CHOICE QUESTION

2 mins • 1 pt

黃哈密推不動書櫃,於是他先將書本全部取出,再用一小片塑膠地毯放在書櫃底下,結果可輕易推動。下列關於此情形的敘述何者錯誤

下壓的力愈大,摩擦力也愈大

摩擦力的大小與接觸面的性質有關

黃哈密剛開始推不動書櫃,是因為當時他的水平推力小於摩擦力

推力和摩擦力方向相反

5.

FILL IN THE BLANKS QUESTION

45 sec • 1 pt

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〈不必寫單位〉

(a)  

6.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Media Image

〈不必寫單位〉

(a)  

7.

FILL IN THE BLANKS QUESTION

1 min • 1 pt

Media Image

〈不必寫單位〉

(a)  

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