It’s impossible to obtain a magnet with a single pole because every magnet has both a north and south pole. Cutting a magnet always results in two smaller magnets, each with its own north and south poles.
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Yes, you can use a magnet to pick up a steel paper clip from water without wetting your fingers or the magnet. By holding the magnet outside the water, it will attract the paper clip through the water’s surface.
Magnetic field lines represent the direction and strength of the magnetic field. They show how the magnetic force acts around a magnet.
A magnetic compass is a device with a needle that aligns itself with the Earth’s magnetic field, showing directions such as north and south.
From this chapter, I learned about the properties of magnets, including attraction and repulsion, the concept of magnetic poles, and how magnetic fields work. It also covered practical uses of magnets in everyday technology and applications.