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2-4Science

Authored by 陳耀民 老師

Science

1st - 5th Grade

Used 2+ times

2-4Science
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40 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

液壓起重機是生活中,用流體傳送動力的應用。

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

踩動腳踏車的腳踏板後,會藉由鏈條帶動前齒輪轉動。

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

大齒輪有 20 齒、小齒輪有 10 齒,兩齒輪用鏈條相連,大齒輪轉動一齒時,小齒輪會轉動兩齒。

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

兩個大小不同的齒輪組合,大、小齒輪轉動的圈數都相同。

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

腳踏車的前齒輪有 60 齒,後齒輪有 30 齒,如果腳踏板轉動一圈時,後齒輪會轉動兩圈。

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

互扣的齒輪組可以改變施力方向和傳送動力。

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

騎腳踏車時,腳踩動腳踏板的動力,是透過齒輪和鏈條傳送至後輪。

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