1. Unlike poles attract each other.   True   False   2. What is the true test for magnetism?   Repulsion   Neither Attraction nor Repulsion   Attraction   Hint Half-n-half Clue   3. 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   4. The imaginary vertical plane passing through the magnetic axis of a freely suspended bar magnet is called the   magnetic meridian   magnetic equator   equatorial meridian   Half-n-half Clue   5. Most of the magnetic power appears to be concentrated at certain points of a magnet. These points are called _______.   poles   inductors   keepers   Half-n-half Clue   6. Name the magnetic iron ore once used as a primitive compass.   Lodestone   Soft Iron   Keeper   Half-n-half Clue   7. The strength of the south pole of a magnet is _______ the strength of its north pole.   less than   equal to   greater than   Half-n-half Clue