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六下自然期中考是非題02

Authored by 勁男 李

Science

6th Grade

Used 4+ times

六下自然期中考是非題02
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50 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

動滑輪的施力臂比抗力臂長,是個省力的槓桿工具。

O
X

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

測量利用動滑輪拉動物體需要花費多少的力時,要考慮到滑輪本身的重量。

O
X

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

以螺絲起子為例,握柄的部分稱為「輪」,金屬棒的部分稱為「軸」。

O
X

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

「以輪帶軸」的工作方式較費力。

O
X

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

輪軸工具中的輪與軸會同步運轉,輪轉動一圈,軸也會轉一圈。

O
X

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

動滑輪與定滑輪都是省力的工具,但是如果施力的方向相同,物體移動的方向卻不同。

O
X

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

利用定滑輪工作,可以省力並加快工作的速度。

O
X

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