國中自然2下6-1_
Quiz
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Fun
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7th - 9th Grade
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Practice Problem
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Medium
Tang Da
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15 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。
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列何者不是超距力?
3.
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。
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
以下哪些是選擇彈簧當作測量工具的因素?甲.彈性好;乙.受力之後形變明顯;丙.密度大;丁.受力時形變相當有規律。
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
華正取一個彈性限度標示為100 gw,原長為10 cm的彈簧測量20 gw的砝碼時,彈簧全長為18 cm,若改掛一個玩具小熊,則彈簧全長為14 cm。試問玩具小熊的重量為多少gw?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列哪些為兩作用力使物體達到平衡狀態的條件?甲.大小相等;乙.方向相反;丙.方向相同;丁.作用在同一直線;戊.作用力的來源相同。
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
有關「力」的敘述,下列何者錯誤?
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