107國中自然3下_2-2
Quiz
•
Other
•
7th - 9th Grade
•
Practice Problem
•
Hard
Yu Liu
Used 34+ times
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10 questions
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1.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖所示,明偉將一個螺旋形線圈前後分別放置甲、乙兩根磁棒,則當按下開關後,甲、乙兩磁棒的移動方式為何?
甲向右移、乙向左移
甲向左移、乙向右移
甲乙皆向右移
甲乙皆向左移
2.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如附圖所示,至偉於螺旋形線圈右側置一磁棒,按下開關後,磁棒向左移動往線圈靠近。根據此現象,可推斷線圈上的電流方向為何?
電流由甲流出
電流由乙流出
在甲乙間來回不停的變換流向
沒有電流產生
3.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
世華在通有電流的銅線附近放置一個羅盤,他應該不會發現下列何種現象?
磁針偏轉角度因為電流加大而變大
離銅線越近,羅盤磁針偏轉角度較大
羅盤放在銅線的上下左右,偏轉方向都不變
離銅線越遠的羅盤,指針方向較不受影響
4.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
如芳將一長直導線垂直放置,並且通予一從上往下的電流時,所建立的磁場方向應該為何?
平行於導線向下
平行於導線向上
垂直於導線呈順時鐘方向
垂直於導線呈逆時鐘方向
5.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
明芳將鐵粉置於紙板上,並且於紙板中心通過一導電的長直導線,則他應該會發現下列何種現象?
鐵粉形成許多以導線為中心的同心圓
鐵粉在導線周圍形成許多獨立的小圓圈
鐵粉在周圍形成發散的形狀
距導線越近,鐵粉密度越低
6.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
在通有電流的銅線周圍放置一個羅盤並且進行各種測試,應該會發現磁針偏轉的方向或角度和下列何者的變化是沒有關係的?
電流方向
由連接一個電池改為並聯兩個電池
電流大小
和導線之間的距離
7.
MULTIPLE CHOICE QUESTION
30 sec • 1 pt
郁婷對一支直立的原子筆依順時鐘方向由下往上繞上金屬導線,取出原子筆後將線圈後通予電流,如附圖所示,請問線圈的N極應該位於線圈的何種位置?
在線圈上方
在線圈下方
在線圈右方
在線圈左方
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