兩個彼此扣住的齒輪組，大齒輪有40齒，小齒輪有20齒，當小齒輪轉一圈時，大齒輪轉幾圈？
自然大問答03
Quiz
•
Science
•
6th Grade
•
Easy
勁男 李
Used 2+ times
FREE Resource
10 questions
Show all answers
1.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
一圈
兩圈
半圈
一圈半
2.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
翹翹板中間維持不動的那一點是什麼？
施力點
抗力點
支點
不一定
3.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
現代腳踏車的大小齒輪是利用何者作連結？
塑膠繩
鏈條
皮帶
棉線
4.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
由一個30齒的大齒輪及10齒的小齒輪彼此扣住而組成的齒輪組。當大齒輪轉3圈時，小齒輪轉幾圈？
圈
1圈
3圈
9圈
5.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
小美進行「乾燥與潮溼環境對土司發霉的影響」實驗中，哪一項是必須改變的因素？
土司的大小
土司有無噴水
夾鏈袋的大小
土司的價格
6.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
哪一種生物不是微生物？
細菌
藍綠藻
黴菌
蕨類
7.
MULTIPLE SELECT QUESTION
20 sec • 1 pt
在槓桿上，放物體的位置稱為什麼？
支點
抗力點
配重點
中心點
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