A toy car has a bar magnet laid hidden inside its body along its length. Using another magnet how will you find out which pole of the magnet is facing the front of the car?
Important Questions on Fun with Magnets
Match Column I with Column II (One option of A can match with more than one option of B).
| Column I | Column II |
| (a) Magnet attracts | (i) rests along a particular direction |
| (b) Magnet can be repelled | (ii) iron |
| (c) Magnet if suspended freely | (iii) by another magnet |
| (d) Poles of the magnet can be identified by | (iv) Iron filings |
Figure shows a magnetic compass. What will happen to the position of its needle if you bring a bar magnet near it? Draw a diagram to show the effect on the needle on bringing the bar magnet near it. Also draw the diagram to show the effect when the other end of the bar magnet is brought near it.
Boojho kept a magnet close to an ordinary iron bar. He observed that the iron bar attracts a pin as shown in figure:
What inference could he draw from this observation? Explain.
A bar magnet is cut into two pieces A and B, from the middle, as shown in figure:
Will the two pieces act as individual magnets? Mark the poles of these two pieces. Suggest an activity to verify your answer.
