
浮力判斷
Authored by 江柏顥 江柏顥
Science
7th Grade
Used 3+ times

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9 questions
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1.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
將一個實心圓柱掛在彈簧秤下端,使其逐漸沒入水中,測得其沒入深度(h)與彈簧秤讀數,結果繪製如圖。請問圓柱在幾公分後完全沒入水中?完全沒入水中時所受到的浮力是多少?
2cm,
400gw
3cm,
300gw
4cm,
200gw
4cm,
300gw
2.
MULTIPLE CHOICE QUESTION
2 mins • 6 pts
甲、乙兩個「重量均為W公克」的物體,放入水中沈浮情況如圖所示,若甲、乙所受到的浮力分別為「B甲」、「B乙」,則「W」、「B甲」、「B乙」的數值大小關係為何?
「B甲」=「W」=「B乙」
「B甲」>「W」=「B乙」
「B甲」<「W」=「B乙」
「B甲」=「W」>「B乙」
3.
MULTIPLE CHOICE QUESTION
1 min • 3 pts
(課6-9)阿翰和同學一起到海邊玩,下面是他們聊天的內容,哪個人的觀念是「錯誤」的?
阿翰:我在海裡可以浮起來,代表我的體重比較輕
琳琳:我雖然不敢下水,但是我把腳泡在海水中時有會有浮力
小生:當我靜止浮在海面上時,所受的合力為零
當我雙手抱膝維持水母漂時,所受到的浮力等於我的體重
4.
MULTIPLE CHOICE QUESTION
2 mins • 4 pts
一個密度為o.5,體積100立方公分的物體,丟入密度為1的水中,請問此物體所受到的重力、浮力分別為多少?
重力:50gw
浮力:50gw
重力:50gw
浮力:100gw
重力:100gw
浮力:100gw
重力:100gw
浮力:50gw
5.
MULTIPLE CHOICE QUESTION
2 mins • 5 pts
一個物體密度為1.2,體積為100立方公分,將其丟入密度為1的水中,請問物體所受到的重力?浮力?以及排開液體的體積分別為多少?
浮力:120gw
重力:120gw
排開液體體積:100立方公分
浮力:100gw
重力:120gw
排開液體體積:100立方公分
浮力:120gw
重力:120gw
排開液體體積:120立方公分
6.
MULTIPLE CHOICE QUESTION
1 min • 4 pts
一個物體密度為3,體積為100立方公分,將其丟入密度為2的液體中,請問它在水中沉、浮狀況為何?
沉入水中
浮於水面
載浮載沉
7.
MULTIPLE CHOICE QUESTION
1 min • 5 pts
兩顆保齡球A、B,重量分別為5000g、6000g,丟入水中的沈浮狀況如圖,請比較兩球的浮力大小
A > B
A = B
A < B
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