2-2-2-4(20230516)
Quiz
•
Science
•
1st - 5th Grade
•
Practice Problem
•
Hard
+2
Standards-aligned
陳耀民 老師
Used 1+ times
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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-PS2-1
NGSS.MS-PS2-2
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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