
南一國小自然5上CH4-2
Quiz
•
Science
•
5th Grade
•
Practice Problem
•
Medium
南一 自然
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6 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在電風扇的轉軸上加潤滑油目的為何?
增加摩擦力
減少摩擦力
增加動力
減少動力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
用彈簧秤水平拉動光滑桌面上的盒子,彈簧秤的讀數是100公克,則在粗糙桌面上拉動相同盒子,彈簧秤讀數會如何?
大於100公克
等於100公克
小於100公克
無法比較
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在甲、乙兩張桌面用彈簧秤拉動相同的盒子,彈簧秤的讀數分別是100公克與150公克,哪一張桌面的摩擦力較小?
甲
乙
一樣
無法比較
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小青在粗糙桌面施了100公克的力才拉動重物,如果她將相同的重物和彈簧秤拿到光滑桌面拉動,施力大小應該為何?
大於100公克
等於100公克
小於100公克
無法比較
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小明分別在甲、乙兩個不同的地面上,推動相同重量的重物,他發現在甲地面上重物較容易推動,請問哪一個地面的摩擦力比較大?
甲
乙
一樣
無法比較
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
小南用彈簧秤在光滑桌面拉動重物,發現他花了50公克的力量,如果將相同的重物放到粗糙桌面上拉動,下列哪一個是他可能的實驗結果?
10公克
30公克
50公克
100公克
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