國中自然2下ch6-1力與平衡

Quiz
•
Physics
•
8th Grade
•
Medium
翰林出版國中自然 翰林出版國中自然
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8 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列何者不是超距力?
萬有引力
靜電力
磁力
浮力
2.
MULTIPLE CHOICE QUESTION
20 sec • 1 pt
下列哪一個現象可以確定受到力的效應?
裂開或隆起的地表
停車格內靜止的車子
桌上靜止不動的書
放在桌上的橡皮筋
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖所示,甲物體所受向左的作用力大小為多少?(一格代表5gw)
5gw
10gw
20gw
40gw
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是處在兩力平衡的狀態?
足球在地上愈滾愈慢
手將弓箭拉滿後,靜止不動
放在地面上的椅子
浮在平靜無波水面上的落葉
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
同質量的木塊和鐵塊分別掛於某彈簧之下端(未超過彈性限度),則彈簧的全長應如何?
掛木塊時較長
掛鐵塊時較長
一樣長
無法確定
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一靜止物體受 5 gw、6 gw、10 gw、8 gw 四力同時作用,物體仍然靜止,則這些力的合力為何?
10 gw
8 gw
0 gw
29 gw
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
家裡懸吊的吊燈呈靜止時,關於其受力之情形,下列敘述何者正確?
僅受地球引力作用
僅受懸線之拉力作用
同時受地球引力和懸線拉力之作用
不受力作用
8.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一個靜止的物體,同時受兩力作用,若仍維持靜止狀態,則此兩力的夾角為何?
0°
60°
90°
180°
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