國小三年級自然科翰林版三上第四單元

以下哪一樣物品可以被磁鐵吸引? Which of the following items can be attracted by magnets?

• 鉛筆pencil

• 考卷Exam papers

• 釘書機stapler

磁鐵隔著紙張可以吸引迴紋針嗎? Can magnets attract paper clips through paper?

• O

• X

長條型磁鐵兩端和中間位置比較,哪個地方磁力較強呢?Comparing the two ends of a long bar magnet with the middle position, which part has the stronger magnetic force?

• 中間middle

• 兩端both ends

• 都一樣All the same

• 無法判定Unable to determine

磁鐵吸附的迴紋針數量越多,表示磁鐵的磁力強度怎樣? The more paperclips a magnet attracts, what is the magnetic strength of the magnet?

• 磁力強 Strong magnetism

• 磁力弱 Magnetism is weak

• 沒有磁力 No magnetism

馬蹄型磁鐵哪一邊的磁力較強? Which side of a horseshoe magnet has stronger magnetic force?

• 中間 middle

• 兩端 both ends

將兩個磁鐵的N極與S極靠近,會發生什麼? What will happen if the N pole and S pole of two magnets are brought close to each other?

• 磁鐵相吸 Magnets attract

• 磁鐵相斥 Magnets repel

釘書機可以被磁鐵吸引,是因為它是什麼製造的? A stapler can be attracted to magnets because of what it is made of?

• 銅製品 copper products

• 鐵製品Iron products

硬幣可以被磁鐵所吸引嗎? Can coins be attracted by magnets?

• O

• X

將磁鐵放在碟子中並放進水槽,可以發現磁鐵的哪一個磁極指向北邊?Place the magnet in a dish and put it into the sink. Can you find which pole of the magnet points north?

• N

• S

• 不一定uncertain

磁鐵兩端磁力最強的部位稱為?The parts at both ends of a magnet with the strongest magnetic force are called?

• 磁鐵magnet

• 磁極magnetic pole