
八下理化6-1力的種類
Authored by Pan Jing-Yau
Science
8th Grade
Used 10+ times

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12 questions
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1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
自然界中,有些力是不需與物體互相接觸即有作用,下列何種力不屬於此類?
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是處在兩力平衡的狀態?
放在地面上的椅子
手將弓箭拉滿後,靜止不動
浮在平靜無波水面上的落葉
足球在地上愈滾愈慢
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,將重量不同的四個物體分別掛在性質完全相同的甲、乙、丙、丁四根彈簧的下端,其伸長的程度皆不同,則哪一個物體所受的彈簧拉力最大?
甲
乙
丙
丁
4.
MULTIPLE SELECT QUESTION
1 min • 1 pt
兩力之合力為10 kgw,則此兩力可能為下列哪些力的合力?
3 kgw、6 kgw
6 kgw、8 kgw
4 kgw、5 kgw
20 kgw、5 kgw
5.
MULTIPLE SELECT QUESTION
30 sec • 1 pt
下列有關力的敘述,何者最為完整?
受2.5公斤重的力
受力2.5
受力2.5公斤
受向北2.5公斤重的拉力
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列哪些為兩作用力使物體達到平衡狀態的條件?(甲)大小相等;(乙)方向相反;(丙)方向相同;(丁)作用在同一直線;(戊)作用力的來源相同
甲乙丙
甲乙丁
乙丙戊
甲丁戊
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
在彈性限度內,彈簧的全長、伸長量與受力大小的關係為何?
全長與受力大小成正比
全長與受力大小成反比
伸長量與受力大小成正比
伸長量與受力大小成反比
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