Question

Q.2 fill in the blanks:-
1. Name given to the natural magnet discovered in Greece-
2. Metals which can be magnetized are
Metals.
3. Every magnet has-
4. The force of attraction of a magnet is strongest at the
5. Like poles of magnets ---------each other.
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Answer 1

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1. Name given to the natural magnet discovered in Magnesia, Greece.

• A shepherd discovered the ores which were attracting the iron/magnetic metals. The name of the ores was given after the name of the city.

2. Metals which can be magnetized are magnetic metals.

• Some metals are Iron, Cobalt, Nickel and even some metals exhibit the magnetic property.

3. Every magnet has two poles (North & South)

• The poles are the ends of the magnet. They have the maximum magnetic property. Additionally they also show directional property (always points in N-S direction)

4. The force of attraction of a magnet is strongest at the poles (North & South poles)

• As we discussed above, the magnetic field lines are accumulated and at minimum distance which shows maximum Magnetism.

5. Like poles of magnets repel each other.

• Similarly unlike poles attract each other. This can be seen in case of electrostatic force too.

Answer 2

Answer:

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1. Magnesia, Greece

Explanation - It was discovered about thousand year ago at magnesia in Greece.

2. Magnetic metal

Explanation - Some metal like iron, cobalt have the magnetic property.

3. 2 Poles

Explanation - A simple magnet must have two pole :- south and north pole.

4. Poles

Explanation - Magnetic lines are accumulated at minimum distance which shows maximum Magnetism.

5. Repel

Explanation - If two magnets of North - North pole are there then they will repel each other.