
南一國中自然9上ch2-4
Quiz
•
Science
•
9th Grade
•
Practice Problem
•
Hard
南一 自然
Used 15+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
2017年世大運滑輪溜冰選手楊合貞在比賽過程中,於彎道處身體會不自主向跑道內側傾斜,目的是增加哪一種力來幫助轉彎?
摩擦力
萬有引力
反作用力
向心力
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
甫宜想吃榴槤,於是他去市場中挑榴槤,老闆跟他說3kgw,試問3kgw的榴槤為多少牛頓?
3牛頓
29.7牛頓
9.8牛頓
40牛頓
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
福財用單手轉動擺球使其做圓周運動,若擺線突然斷裂,則擺球瞬間運動情況為何?
沿圓周的切線方向飛去
向圓心的方向飛去
垂直向下掉落
停止轉動
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
假設地球的質量為其衛星的16倍,則地球球吸引其衛星的力A與其衛星吸引地球的力B,兩者比值為何?
16
1/16
4
1
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
萬有引力是一種非接觸力,試問下列選項中何者不是非接觸力?
電荷間的靜電力
磁力
向心力
浮力
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
明順用15kgw的力去抬一個放在地面上,重量為30kgw的水泥袋,結果水泥袋一動也不動,試問水泥袋對地球的引力大小為何?
15kgw
20kgw
30kgw
35kgw
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在木星上的同一地點,某物的質量與重量之間有什麼關係?
成正比
成反比
平方成反比
沒有關係
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