南一五下Ch4力與運動-2摩擦力
Quiz
•
Physics
•
5th Grade
•
Practice Problem
•
Medium
Alien Chiu
Used 13+ times
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21 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
在地面推動大龍球,手只要停止推動,一段時間後球就會停止。
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
通常摩擦力大,會比較省力;摩擦力小,會比較費力。
3.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
買原子筆時要選擇握筆處有紋路的,這樣手比較容易握住筆身,比較好寫字,這屬於減少摩擦力的應用。
4.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
摩擦力與接觸面的材質有關,也與物體的重量有關係。
O
X
5.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
爸爸想要推動電視置物櫃,請我們先將抽屜裡面的物品全部取出,這樣可以減少摩擦力。
6.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪些是減少摩擦力的運用?
在齒輪上加潤滑油
滑板下有輪子
表面光滑的滑梯
籃球表面有顆粒
7.
MULTIPLE SELECT QUESTION
45 sec • 1 pt
下列哪些是減少摩擦力的應用?
直排輪鞋有輪子
煞車塊上的紋路
樓梯的防滑條
在齒輪間上潤滑油
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