
國中自然3上_3-4
Authored by Tang Da
Fun
7th - 9th Grade
Used 7+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖是一個輪軸,軸半徑為10公分,輪半徑為50公分。若要使100公斤重的重物上升20公分,則要施力往下拉幾公分?
20
50
100
200
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者為使用斜面可能達到之目的?
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
螺旋是下列哪一種機械裝置的變形?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
登山時,一般不走陡峭的直線路徑,而是沿著彎曲的山路盤旋而上,其原理類似下列何種裝置?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如附圖所示,若將光滑斜面上的物體分別以F1、F2的力將物體等速提升,則此兩種狀態下的施力大小關係為何?
F1>F2
F1<F2
F1=F2
無法判斷
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如附圖所示,若要將40公斤重的重物由斜面底部推至頂端,則需要施多少公斤重的力?(不考慮摩擦力)
10
50
100
400
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
關於簡單機械的敘述,下列何者正確?
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