1. The distance between one of the magnetic poles and the centre of the bar magnet is called the   effective length   magnetic equator   length of magnet   Hint Half-n-half Clue   2. Temporary magnets are made of _______.   steel   copper   soft iron   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   magnetic meridian   equatorial meridian   Half-n-half Clue   4. 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   5. The imaginary line NS passing through the magnetic north and south poles of a bar magnet is called the   magnetic equator   magnetic meridian   magnetic axis   Half-n-half Clue   6. The distance between the magnetic north pole and magnetic south pole of a bar magnet is called the   equatorial axis   effective length   length of magnet   Half-n-half Clue   7. Magnets will still retain their magnetism even if they are strongly heated.   True   False