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School Physics Quiz : Magnets


Answer the following questions based on magnets.

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Multiple choice

Your Performance  

1.

Temporary magnets are made of _______.

  soft iron

  steel

  copper

  Half-n-half Clue
 

2.

The strength of the south pole of a magnet is _______ the strength of its north pole.

  less than

  greater than

  equal to

  Half-n-half Clue
 

3.

The imaginary vertical plane passing through the magnetic axis of a freely suspended bar magnet is called the

  magnetic equator

  equatorial meridian

  magnetic meridian

  Half-n-half Clue
 

4.

Magnets will still retain their magnetism even if they are strongly heated.

  True

  False

 

5.

Name the magnetic iron ore once used as a primitive compass.

  Keeper

  Lodestone

  Soft Iron

  Half-n-half Clue
 

6.

An iron nail is suspended vertically from a string. When a strong bar magnet is brought close to it, the iron nail is attracted to the magnet and the string assumes an inclined position. If a wooden plank is placed between the iron nail and the magnet, the string will _______.

  remain in an inclined position

  return to its vertical position

 

7.

Most of the magnetic power appears to be concentrated at certain points of a magnet. These points are called _______.

  keepers

  poles

  inductors

  Half-n-half Clue
 


 
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