Exploring Magnets
探索磁铁
A magnet is an object that has a strong magnetic field.
磁铁是具有强磁场的物体。
Most magnets are made from nickel or iron.
大多数磁铁是由镍或铁制成的。
A magnet has two opposite poles.
磁铁有两个相反的磁极。
They are called the north and the south poles.
它们被称为北极和南极。
The magnetic field is the strongest at the poles.
两极的磁场最强。
Magnets can attract or repel other magnets.
磁铁可以吸引或排斥其他磁铁。
If you put two magnets together, what will happen?
如果你把两个磁铁放在一起，会发生什么？
If you put the same poles together, they repel each other.
如果你把相同的两极放在一起，它们会互相排斥。
If you put the opposite poles together, they attract each other.
如果你把相反的两极放在一起，它们会互相吸引。
Magnets can attract magnetic objects.
磁铁可以吸引磁性物体。
A paper clip is magnetic.
回形针是磁性的。
If you point a magnet at a paper clip, the magnet attracts it.
如果你把磁铁指向回形针，磁铁会吸引它。
Magnets do not attract non-magnetic objects.
磁铁不吸引非磁性物体。
Paper is non-magnetic.
纸是无磁性的。
A magnetic field can go through objects, but it will be weakened.
磁场可以穿过物体，但会被削弱。
A magnet can still attract a paper clip through paper.
磁铁仍然可以通过纸张吸引回形针。