自然五下_4-2摩擦力
Quiz
•
Physics
•
5th Grade
•
Practice Problem
•
Medium
LIAO SIAOMEI
Used 7+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
何者不屬於增加摩擦力的方法?
煞車塊上的紋路
鞋底上凹凸不平的溝槽
在齒輪間上油
瓶蓋上的紋路
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
哪一個是生活中增加摩擦力的例子?
手推車的輪子
直排輪的輪子
在齒輪間上潤滑油
樓梯的防滑條
3.
MULTIPLE CHOICE QUESTION
20 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
4.
MULTIPLE CHOICE QUESTION
20 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
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
分別在甲地面與乙地面上推動相同的紙箱,在甲地面上比較容易推動,請問哪個地面的摩擦力比較大?
甲
乙
一樣
無法比較
6.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
為了行車安全,腳踏車的哪一個部分不能上潤滑油?
齒輪間
鏈條
煞車塊
腳踏板與齒輪間的轉動處
7.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
運動員穿釘鞋(鞋底釘子)的主要目的是什麼?
美觀
降低成本
增加摩擦力
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