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?
0623 傑競文涵幫

Quiz
•
Science
•
8th Grade
•
Hard
Anita Wen
Used 3+ times
FREE Resource
12 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
甲
乙
丙
丁
2.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
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
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 BLANK QUESTION
45 sec • 1 pt
〈不必寫單位〉
6.
FILL IN THE BLANK QUESTION
1 min • 1 pt
〈不必寫單位〉
7.
FILL IN THE BLANK QUESTION
1 min • 1 pt
〈不必寫單位〉
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