There is a large bar magnet built into the table in front of you. The north pole of that magnet is exposed and points upward. You have a small bar magnet in your hand. As you move the small magnet toward the table, its south pole is attracted toward the north pole of the table's magnet and the two poles stick together tightly. However, the north pole of the small magnet is repelled by the north pole of the table's magnet. The reason why this repulsion doesn't push the small magnet away from the table is that
A)	the two north poles are relatively far apart and the forces between magnetic poles decrease quickly as the distance between them increases.
B)	the north pole of the small magnet is weaker than its south pole.
C)	the south pole of the small magnet shields its north pole so that the magnetic forces do not affect the north pole as much. (The north pole lies behind the south pole.)
D)	the attractive forces between opposite magnetic poles are inherently stronger than the repulsive forces between like magnetic poles.
Answer:A
There is a large bar magnet built into the table in front of you. The north pole of that magnet is exposed and points upward. You have a small bar magnet in your hand. As you move the small magnet toward the table, its south pole is attracted toward the north pole of the table's magnet and the two poles stick together tightly. However, the north pole of the small magnet is repelled by the north pole of the table's magnet. The reason why this repulsion doesn't push the small magnet away from the table is that
A)	the two north poles are relatively far apart and the forces between magnetic poles decrease quickly as the distance between them increases. B)	the north pole of the small magnet is weaker than its south pole. C)	the south pole of the small magnet shields its north pole so that the magnetic forces do not affect the north pole as much. (The north pole lies behind the south pole.) D)	the attractive forces between opposite magnetic poles are inherently stronger than the repulsive forces between like magnetic poles.