111_六下_南一_102從輪軸到齒輪
Quiz
•
Science
•
6th Grade
•
Practice Problem
•
Easy
黃建華 鼓山國小
Used 3+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
輪軸:如圖所示,這是一個施力在輪上的工具。請問以下的說明哪一個是不正確的?
如圖,手往上拉時,物體會下移動
這是一個省力的工具
手拉的是大圈,物體移動的是小圈
手拉動繩段長度會比物體移動的長度還要多
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
輪軸:如圖所示,這是一個施力在軸上的工具。請問以下的說明哪一個是不正確的?
如圖,手往上拉時,物體會上移動
這是一個費力的工具
手拉的是小圈,物體移動的是大圈
手拉動繩段長度會比物體移動的長度還要多
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖所示:這是以輪帶軸的說明圖,請找找以下的工具中,哪一個是利用這原理的工具呢?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖所示:這是以軸帶輪的說明圖,請找找以下的工具中,哪一個是利用這原理的工具呢?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖所示,有大小兩個齒輪此相扣,這時大齒輪往逆時針轉動時,小齒輪會是順時針轉動。此外,以下有關齒輪轉動的說明,哪個是正確的?
大齒輪轉一圈,
小齒輪也轉一圈
大齒輪轉動的方向會和相扣的小齒輪轉向相同
大齒輪轉動的圈數
會比小齒輪轉得多
大齒輪轉一齒,
小齒輪也轉一齒
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖所示:大小齒輪沒有相扣,但是以鏈條的方式將兩個齒輪連接在一起時,下面的說法,哪個才是正確的?
大齒輪的轉動方向會和小齒輪的轉向相反
大齒輪轉一圈,
小齒輪也會轉一圈
小齒輪轉一圈,
大齒輪也會轉一圈
小齒輪的轉動方向會和大齒輪的轉向相同
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
如圖所示:我們可以看到腳踏車的基本機械構造。請找到說明有錯誤的地方。
只看腳踏板到大齒輪的部份,這裡是個省力的裝置
從大齒輪到小齒輪,我們知道齒輪的轉向會相反,所以我們向前踩時,車輪就會往後轉
從小齒輪到後車輪
這裡是以軸帶輪的設計,所以是個費力的裝置
從腳踏板到後車輪
腳踏板的施力臂比後車輪的抗力臂還小,所以其實腳踏車是個費力的工具
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