
110-1國三自然二段翰林習作練習
Quiz
•
Physics
•
8th Grade
•
Practice Problem
•
Medium
唐碩振 唐碩振
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60 questions
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1.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
小晏在夜市玩射飛鏢,她將三支飛鏢射在旋轉圓盤上的甲、乙、丙三位置,飛鏢仍持續隨著圓盤中心旋轉,而旋轉過程的某一瞬間如圖所示,若選項中箭頭僅代表力的方向,則此時三支飛鏢所受的向心力方向為下列何者?
2.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
下列對於運動會中各項比賽的描述,何者與牛頓第三運動定律有關?
3.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
爸爸帶著兒子與女兒到公園玩翹翹板,三人所坐的位置如圖所示,爸爸、哥哥、妹妹的體重分別為65kgw、40kgw、25kgw。此時翹翹板倒向爸爸那一端且與地面接觸,三人都希望可以將爸爸那端抬高,不與地面接觸,三個人皆提出調整位置的方式,請問那種方式可能會達成他們的希望?爸爸:我可以往前坐到甲的位置。哥哥:妹妹往後坐可以和我坐在同一格內。妹妹:我可以和哥哥交換位置。
爸爸和哥哥的方式都可能達成希望
三個人的方式均可能達成希望
只有爸爸的方式可能達成希望
只有妹妹的方式有可能達成希望
4.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
以100N的水平推力將物體水平移動3公尺,則此力對物體所作的功為多少?
5.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
同質量 A、B 兩物體,各以相等速率做等速度運動,僅運動方向相反,則兩者的動能有何關係?
6.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
某公車做直線運動的位置-時間關係圖(x-t圖)如圖所示,公車在t=0時開始移動,若質量固定不變,則公車在下列哪一時刻的動能最大?
t=20分
t=40分
t=55分
t=75分
7.
MULTIPLE CHOICE QUESTION
45 sec • 1 pt
運動中的物體在粗糙平面上,經過一段距離後漸漸停止下來,物體所減少的動能和摩擦力所做的功有何關係?
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