6上末自N4-2

6上末自N4-2

6th Grade

38 Qs

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6上末自N4-2

6上末自N4-2

Assessment

Quiz

Science

6th Grade

Practice Problem

Medium

Created by

Chen kumiko

Used 2+ times

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38 questions

Show all answers

1.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

小米在製作電磁鐵時,要注意什麼? 

(1)線圈纏繞方向
(2)砂紙顆粒大小
(3)漆包線顏色
(4)吸管顏色

2.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一項不是電磁鐵的特性? 

(1)須通電才有磁性
(2)會吸住鐵製品
(3)磁力永遠固定不變
(4)具有N、S極

3.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

關於電磁鐵和一般磁鐵的相同之處,下列何者正確? 

(1)具有N、S極
(2)磁極可以改變
(3)磁力可以改變
(4)須通電才有磁性

4.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

製作電磁鐵時,不需要下列哪一項物品? 

(1)電池
(2)漆包線
(3)鐵棒
(4)溫度計

5.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列哪一個因素會影響電磁鐵的磁極方向? 

(1)電池串聯數
(2)線圈纏繞數
(3)電池的連接方向
(4)漆包線的粗細

6.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

下列何種方式可以讓電磁鐵的磁極改變? 

(1)增加線圈數
(2)減少線圈數
(3)增加電池數
(4)將電池正、負極顛倒

7.

MULTIPLE CHOICE QUESTION

30 sec • 1 pt

只用一個電池,下列哪一種線圈數的電磁鐵會吸起最多數量的迴紋針? 

(1)20圈
(2)40圈
(3)60圈
(4)80圈

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