絲絹與玻璃棒摩擦之後,絲絹帶負電,玻璃棒帶正電,則下列推論何者正確?

電學與電路測驗

Quiz
•
Chemistry
•
9th Grade
•
Medium
洪菁穗 洪菁穗
Used 2+ times
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26 questions
Show all answers
1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
玻璃棒得到質子,所以帶正電
絲絹得到電子,所以帶負電
玻璃棒摩擦前後,其中子數不同
絲絹和玻璃棒摩擦時,發生化學變化
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
將一根帶負電的塑膠棒靠近一顆以絕緣細線懸掛的不帶電金屬球,但塑膠棒與金屬球不互相接觸。關於金屬球兩側所帶電性,與受力後金屬球的位置變化示意圖,下列何者最合理?
A
B
C
D
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
帶負電的塑膠尺靠近原來不帶電的金屬球,電荷的分布如右圖所示,則下列敘述何者正確?
金屬球上的正電荷量比負電荷量多
金屬球上的正電荷量比負電荷量少
金屬球上的正、負電荷分開的現象是電子移動的結果
金屬球上的正電荷可以脫離原子束縛移至塑膠尺上
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如圖,每秒通過導線截面的電流為0.2安培,則在5分鐘內通過此截面的總電量為多少庫侖?
0.1庫侖
1.0庫侖
6庫侖
60庫侖
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
圖為電路及導線放大之示意圖。在燈泡發光期間,有關導線中電荷的流動情形,下列何者正確?(+表示帶正電的質子,-表示帶負電的自由電子)
-向上,+不動
-向下,+不動
-不動,+向下
-向上,+向下
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
一電路如右圖,若兩相同燈泡並聯,通過其中一個燈泡之電流為2安培,則通過電池的電流為多少安培?
0.5A
2A
3A
4A
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
現有四個燈座與一顆電池,以導線連接成圖中的電路。阿翰手邊的四顆燈泡裡有一顆為瑕疵品,容易因長時間使用而燒毀,則他應該將此顆燈泡裝在哪個燈座,當燒毀後能讓最多的燈泡維持發亮狀態?
甲
乙
丙
丁
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