掃地用的掃把,其槓桿原理的利用為何?

國三上理化Chap3_4 簡單機械 2024 1105

Quiz
•
Physics
•
9th Grade
•
Hard
Sone Wang
FREE Resource
20 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
省時省力
費時費力
省時費力
省力費時
2.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
一定滑輪之左側掛有一重50公斤重的物體,現於右側向下拉10公分,則物體的高度會上升多少公分?
5
10
20
50
3.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
若於附圖的A點處掛一個150公斤重的物體,則需於B點處向下施力多少公斤重才可達平衡?(摩擦力忽略不計)
50
75
100
150
4.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
如附圖的裝置中掛一個150公斤重的物體,則需於B點處向上施力多少公斤重才可達平衡?(滑輪重及摩擦力忽略不計)
50
75
100
150
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
若使用某輪軸可以25公斤重的力舉起100公斤重的重物,則輪軸半徑比為何?
4:1
1:4
16:1
1:16
6.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
下列何者為使用斜面可能達到之目的?
省時
省力
省功
費力
7.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
螺旋是下列哪一種機械裝置的變形?
槓桿
滑輪
斜面
輪軸
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