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簡單機械是非題02

Authored by 勁男 李

Science

6th Grade

Used 3+ times

簡單機械是非題02
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50 questions

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1.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

水龍頭、拔釘器和螺絲起子都是屬於輪軸的應用。

O
X

2.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

洗手時可以省力的轉開水龍頭,是運用輪軸原理。

O
X

3.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

使用輪軸時,在軸上施力會比在輪上施力省力。

O
X

4.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

當抗力臂和抗力固定時,槓桿的施力點如果距離支點愈遠,省力效果愈明顯。

O
X

5.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

當重物掛在輪上、施力在軸上時,輪軸中的輪半徑就是槓桿原理中的抗力臂。

O
X

6.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

在利用直尺模擬翹翹板中,當抗力和抗力臂固定,手指壓的位置離支點愈遠,所需的力就愈大。

O
X

7.

MULTIPLE CHOICE QUESTION

20 sec • 1 pt

運用槓桿原理抬重物時,當抗力及抗力點不變,施力點離支點愈遠,愈省力。

O
X

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