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Which of these does not cause damage to magnets?

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Important Questions on Fun with Magnet

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Write three main characteristics of a magnet.

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One precaution you should always take while handling a magnet is not to drop it. Why?
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How are magnets stored? Explain.
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It is simple to find poles of a bar magnet. Can you suggest a method to find the poles of a horseshoe magnet?
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The north poles of two magnets attract each other.   
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Why should we keep magnets away from mobiles, televisions, CDs, computers, etc?
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Which is the sure test of magnetism-attraction or repulsion?
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What is the correct way of storing a 

(i) bar magnet  (ii) horseshoe-shaped magnet  

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The poles that repel each other are
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There exists only one shape of a magnet, which is bar magnet.
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Explain the term.

Horseshoe magnet

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When we bring like poles of two magnets close to each other, they:
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A magnet may lose its properties on heating.
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How will you show that like poles repel and unlike poles attract?
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What kind of poles attract and what type of poles repel each other?
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Which of the following will help to retain the strength of the magnet?
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Bar magnet should be stored in pairs. 
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(a) Name two magnetic poles which attract each other.

(b) Name two magnetic poles which repel each other.

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What happens when a magnet is heated?
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Two south poles _____ each other.