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2-2-2-4(20230516)

Authored by 陳耀民 老師

Science

1st - 5th Grade

NGSS covered

Used 1+ times

2-2-2-4(20230516)
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50 questions

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1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

定滑輪的軸心相當於槓桿的支點,滑輪的半徑是施力臂也是抗力臂,所以不省力也不費力。

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

想吊起同一個物體時,使用動滑輪會比使用定滑輪省力。

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

使用定滑輪搬運重物,可以省約一半的力。

Tags

NGSS.MS-ETS1-1

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

使用把手直徑 5 公分的螺絲起子會比使用把手直徑 3 公分的省力。

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-1

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

輪軸實驗器平衡時,比較輪和軸上懸掛的砝碼重量,輪上懸掛的砝碼重量會比較輕。

Tags

NGSS.MS-PS2-2

NGSS.MS-PS2-4

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

輪軸原理中,「施力於輪」表示施力臂比抗力臂長,所以省力。

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

滑輪組裡包含 1 個定滑輪和 1 個動滑輪,可以達到改變施力方向和省力的效果。

Tags

NGSS.MS-ETS1-1

NGSS.MS-ETS1-2

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