用絲絹摩擦玻璃棒後,玻璃棒帶正電,則下列敘述何者正確?

國三上自然習作CH4

Quiz
•
Physics
•
9th Grade
•
Medium
徐 嘉男
Used 1+ times
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10 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
帶正電的質子由絲絹轉移至玻璃棒
帶正電的質子由玻璃棒轉移至絲絹
帶負電的電子由絲絹轉移至玻璃棒
帶負電的電子由玻璃棒轉移至絲絹
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一支與絲絹摩擦過後的玻璃棒與甲金屬球發生感應起電,另一支帶有大量負電荷的金屬棒,則與乙金屬球發生接觸起電,則下列敘述何者正確?
甲金屬球帶正電,乙金屬球帶負電
甲金屬球帶負電,乙金屬球帶正電
甲、乙兩金屬球都帶正電
甲、乙兩金屬球都帶負電
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
當一帶負電物體靠近一個金屬板時,則金屬板內帶正、負電的粒子分布將會變成下列哪一個圖形?
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖甲表示兩個帶電量均為q的電荷,距離r時,兩者間靜電力大小為F;如圖乙,當兩者距離增加為2r 時,其靜電力大小變為F;如圖丙,當電荷的電量變為2q,而距離仍為r 時,其靜電力大小則增加為4F。請問若今有兩個帶電量均為Q的電荷,且兩者距離2r,欲使兩者間靜電力大小為F,如圖丁,則電量Q 應為q 的幾倍?
1/4
1/2
2
4
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
以上四位學生中,何者敘述錯誤?
甲
乙
丙
丁
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
有關丁學生的敘述內容,最後負電荷是如何分布於球體的?
均勻分布在整個球體內部
分布在球體中心
均勻分布在球體的表面
分布在靠近玻璃棒的一端
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
關於導體和絕緣體的敘述,下列何者正確?
導體內的正電荷可以移動,絕緣體則否
導體皆為金屬,絕緣體皆為非金屬
導體中的電子容易自由移動,絕緣體則否
導體通常使用摩擦起電,絕緣體通常使用感應起電
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