國中自然3上_4-1
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Fun
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7th - 9th Grade
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Practice Problem
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Tang Da
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10 questions
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1.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
導體與絕緣體的主要區別在於導體內具有下列何者?
2.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
毛皮摩擦塑膠棒後,下列敘述何者正確?甲.毛皮失去電子;乙.塑膠棒失去電子;丙.毛皮從塑膠棒獲得質子;丁.塑膠棒從毛皮獲得電子;戊.此系統總電量不變。
3.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將帶正電的A物體靠近甲金屬球(兩者沒有接觸),下列敘述何者錯誤?
4.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
將金屬球A、B與C由左至右分別置於絕緣架上,其中A球帶正電,B、C球不帶電且互相接觸。現將A球移近B球,並在兩球碰觸前停止移動;先以手摸C球後移開,再移開C球,最後移開A球。若移動金屬球時,手均握絕緣架,則此時B、C兩球的帶電情形為何?
5.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
下列為金屬球感應起電帶正電的各個步驟:甲.手指移走(移走接地);乙.將帶負電的物體靠近金屬球;丙.移走帶電物體;丁.以手指輕觸金屬球。則感應起電的正確操作順序應為何?
6.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
甲、乙兩圖中的棒子都帶同種電荷,金屬球原先都不帶電,最後這兩個金屬球的帶電情形會如何?
只有A帶電
只有B帶電
A、B帶同種電荷
A、B都帶電,但電荷一正一負
7.
MULTIPLE CHOICE QUESTION
1 min • 1 pt
附圖是金屬球感應起電的實驗過程,有關感應起電的先後順序,下列何者正確?
c→a→b→e→d
d→a→b→c→e
c→e→b→a→d
e→a→c→b→d
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