Page 141 - Science Class 06

In the modern world, we use magnets in Magnet of Various Shapes
almost all aspects of our lives, from our Magnets are available in various shapes.

mobile phones to our cars. They can even
be used in an hour of need in an array of
medical equipment including MRI’s

(Magne c Resonance Imaging). There is a
concern thought to that the level of Pole of a Magnet
magne sm we have around us everyday All kinds of magnet have two poles (north
could cause us issues such as a person with pole and south pole) about which the force
a pacemaker being disrupted or swallowing of a rac on seems to be concentrated. Iron

numerous magne c items which can a ract fillings or other small pieces of iron are
inside the body and cause issues. a racted to the poles of a magnet.

DISCOVERY OF MAGNET
The discovery of magnet was a wonderful

incident. Around 600 B.C. in Turkey, some
people found some naturally occurring
rocks. These rocks a racted the iron caps of
their s cks. Since, it was discovered near

the ancient city of “Magnesia” in Western
Turkey, this rock was named “Magnesian
stone”. A lodestone is a natural magnet that Aim : To locate poles of a magnet.
strongly a racts iron, cobalt and nickel. Materials required : A bar magnet, some
iron nails and a wooden table.

Method : Spread some iron nails on a
table. Now, bind a thread in the middle
of the bar magnet and move it over the
iron nails. You will observe that more
iron nails are a racted to the poles

revealing their loca on. In this way, we
A magnet a racts objects made of iron. can locate the poles of a magnet.
Magnet

An object which a ract iron or repel other

magnets is called a magnet. A substance
1. How did the magnet get its name?
that is a racted by magnet is called
magne c. Iron, nickel, cobalt, etc. are 2. What is a lodestone?
strongly magne c. On the other hand, 3. Write any three magne c materials.
copper, glass, wood, etc. are non-magne c. 4. Name the two poles of a magnet.

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