1. 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 an iron sheet is placed between the iron nail and the magnet, the string will _______.   return to its vertical position   remain in an inclined position   2. Temporary magnets are made of _______.   steel   copper   soft iron   Hint Half-n-half Clue   3. The strength of the south pole of a magnet is _______ the strength of its north pole.   equal to   less than   greater than   Half-n-half Clue   4. Name the 'odd one out'.   Iron   Nickel   Copper   Cobalt   Half-n-half Clue   5. _______ poles repel each other.   Unlike   Like   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. The distance between the magnetic north pole and magnetic south pole of a bar magnet is called the   effective length   equatorial axis   length of magnet   Half-n-half Clue