
6-1
Authored by 蔡忠義 蔡忠義
Physics
8th Grade
Used 4+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列狀態中,何者不需與物體接觸就可產生力的作用?甲.彈弓射出石塊;乙.摩擦過的塑膠梳子吸引小紙片;丙.將門推開;丁.兩人相撞而跌倒;戊.剪刀被磁鐵吸引。
甲乙
乙戊
丙戊
乙丁
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列何者不是超距力?
萬有引力
靜電力
磁力
風力
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以下三種現象:甲.成熟的梨子落向地面;乙.水往低處流;丙.火車向前行駛。其中能說明重力存在者有哪些?
甲、乙
甲、丙
乙、丙
甲、乙、丙
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
力的種類可以分為接觸力與超距力兩種,試問下列哪一種力與其他三力不同?
地球引力
靜電力
磁力
摩擦力
5.
MULTIPLE CHOICE 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?甲.3 kgw、7 kgw;乙.6 kgw、2 kgw;丙.4 kgw、6 kgw;丁.20 kgw、5 kgw。
丙丁
甲丙
甲乙丙
甲乙丁
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
下列哪一個物體可以確定受到力的效應?
裂開或隆起的地表
停車格內靜止的汽車
冷凍庫中的冰塊
放在桌上的橡皮筋
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
附圖為力的圖示,若每一格代表2 kgw,則作用力A的大小及方向為何?
向東,4 kgw
向西,4 kgw
向東,8 kgw
向西,8 kgw
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