Question

A magnet was brought from different directions towards a toy boat that was floating on water in a tub. The effect observed in each case is stated in Column I. Possible reasons for the observed effects are mentioned in Column II. Match the statements given in Column I with those in Column II.

Column I	Column II
Boat gets attracted towards the magnet	Boat is fitted with a magnet with north pole towards its head
Boat is not affected by the magnet	Boat is fitted with a magnet with south pole towards its head
Boat moves towards the magnet when the north pole of the magnet is brought near its head	Boat has a small magnet fixed along its length
Boat moves away from the magnet when the north pole is brought near its head	Boat is made of magnetic material
Boat floats without changing its direction	Boat is made of a non-magnetic material

Answer 1

Hint: In order to solve this question, we need to remember that the like poles of two magnets repel each other while opposite poles of the magnets attract each other. By using this information, we can find the reasons for the various observations.

Complete answer:
We are given a magnet and a toy boat floating on water in a tub. The magnet was brought from different directions towards a toy boat and some effects were observed.
1. The boat gets attracted towards the magnet.
This means that the boat is made of some magnetic material because forces of attraction or repulsion are observed only when another magnetic material is present in the vicinity of a magnet.
2. The boat is not affected by the magnet.
This means that the boat is made of a non-magnetic material because if the boat had been made of a magnetic material then the boat would have shown some attraction or repulsion in the vicinity of the magnet.
3. The boat moves towards the magnet when the north pole of the magnet is brought near its head.
This means that the boat is fitted with a magnet which has its south pole near the head of the boat because the opposite poles of two magnets attract each other.
4. The boat moves away from the magnet when the north pole is brought near its head.
This means that the boat is fitted with a magnet which has its north pole near the head of the boat because the like poles of two magnets repel each other.
5. The boat floats without changing its direction.
This means that the boat has a small magnet fixed along its length because a small magnet shows very small interaction with the magnet brought close to it as a result the boat floats without changing its direction.

Note:
It should be noted that when the magnet is taken to the tail of the boat then in case 3, the boat will move away from the magnet because of the same poles repelling each other. In case 4, the boat will move towards the magnet because of opposite poles attracting each other.