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自然六下1~2 C

Authored by 張 協世

Science

6th Grade

Used 5+ times

自然六下1~2 C
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41 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

兩個相扣的齒輪組,大齒輪40齒,小齒輪20齒,當小齒輪轉一圈時,大齒輪轉幾圈?

一圈
兩圈
半圈
一圈半

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

使用滑輪時,滑輪本身位置固定不動的,稱為定滑輪。

×

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

滑輪組是一種省力又省時的工具,因此應用十分普遍。

×

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

不論是使用動滑輪或定滑輪,都可以改變施力方向和施力大小。

×

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

螺絲起子是應用輪軸的工具,而輪軸是滑輪原理的應用。

×

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

當槓桿工具的支點在中間,且施力臂比抗力臂長時,使用起來會費力。

×

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

除了齒輪和鏈條等機械外,空氣、水和油等流體也可以傳送動力。

×

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