
0630 傑競文涵幫
Authored by Anita Wen
Science
8th Grade
Used 3+ times

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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
甲、乙為相異兩物體,質量相同,但甲的密度大於乙的密度,置入水中時均浮於水面,則下列敘述何者錯誤?
甲、乙密度均小於 1 g/cm3
甲、乙兩者體積不同,沒入水面下的體積亦不同
甲、乙所受水的浮力相等
甲、乙所受的重力相等
2.
FILL IN THE BLANK QUESTION
1 min • 1 pt
計算浮力的通用公式 〈請用英文代號)
這題我會一題一題看,會再手動調分
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
安安為了探討同一物體在液體中所受的浮力,做了下列圖中的實驗,從下列哪一組實驗的結果可推論浮力與沒入液體中的體積有關?
甲、乙
甲、丁
乙、丁
丙、丁
4.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
維維進行浮力實驗,將一均勻的實心圓柱掛在彈簧秤下端,使其逐漸沒入水中,測得其底部沒入水中的深度(h)與彈簧秤讀數,結果繪製如圖,下列敘述何者正確?
此物重量為 600 gw
當物體完全沒入水中時,所受浮力為 300 gw
線段 BC 表示當物體完全沉入水中時,浮力不隨物體所在深度而改變
當圓柱體底部距水面 1 cm 時,所受浮力為 450 gw
5.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
東東潛入海底尋寶,船上的人將尋獲的鐵櫃由海底往上拉,在漸拉上時,則有關鐵櫃所受的浮力大小,以下敘述何者最正確?
在海裡深處所受的浮力較大,上拉時浮力漸變小
在海裡所受的浮力於上拉時浮力不變,拉離水面則浮力漸變小
在上拉全程所受的浮力都一樣大
依鐵櫃形狀而定。
6.
MULTIPLE CHOICE QUESTION
3 mins • 1 pt
密度0.6g/cm3的木塊置於密度0.75g/cm3的汽油中,露出液面的體積為40cm3,試求木塊的總體積為多少cm3?
100 cm3
240 cm3
160 cm3
200 cm3
7.
MULTIPLE CHOICE QUESTION
2 mins • 1 pt
金屬塊完全浸入水中所受的浮力為多少gw?
〈已知圓筒容積等於金屬塊體積,酒精密度為0.8g/cm3〉
180
100
80
20
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