
六下-自然-作業簿-第一回 & 第二回

Quiz
•
Science
•
6th - 8th Grade
•
Hard
林思蓉 林思蓉
Used 2+ times
FREE Resource
27 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
兩個不同體重的人玩翹翹板,不管怎麼移動位置,都無法讓翹翹板保持水平狀態。
正確
錯誤
Answer explanation
重的人離支點近,輕的人離支點遠就可能保持水平狀態。
2.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
支點在中間的槓桿裝置,要保持水平平衡時,不管物體距離支點多遠,施力的大小都一樣。
正確
錯誤
Answer explanation
施力大小隨物體到支點距離而改變
3.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
使用工具,在工具上能找到支點、施力點和抗力點的,就是一種【槓桿】。
正確
錯誤
4.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
當物體的重量和抗力臂固定,則施力臂愈長,所施的力就愈小。
正確
錯誤
5.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
使用槓桿工具時,當支點在抗力點與施力點之間時,一定會比較省力。
正確
錯誤
Answer explanation
不一定省力
6.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
利用槓桿原理抬物體時,施力點距離支點愈近,就會愈省力。
正確
錯誤
Answer explanation
利用槓桿原理抬物體時,施力點距離支點愈近,就會愈省力。(x)
答案: 施力臂愈短愈費力
7.
MULTIPLE CHOICE QUESTION
1 min • 2 pts
有些槓桿工具雖無法省力,但能方便我們工作。
正確
錯誤
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