Suggest an arrangement to store a U shaped magnet. How is this different from storing a pair of bar magnets?
Suggest an activity to prepare a magnetic compass by using an iron needle and a bar magnet.
Three identical iron bars are kept on a table. Two out of three bars are magnets. In one of the magnet the North-South poles
are marked. How will you find out which of the other two bars is a magnet? Identify the poles of this magnet.
You are provided with two identical metal bars. One out of the two is a magnet. Suggest two ways to identify the magnet.
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?
Paheli and her friends were decorating the class bulletin board.
She dropped the box of stainless steel pins by mistake. She
tried to collect the pins using a magnet. She could not succeed.
What could be the reason for this?
Fill in the blanks
(i) When a bar magnet is broken; each of the broken part
will have ……………. pole/poles.
(ii) In a bar magnet, magnetic attraction is …………… near
its ends.
A bar magnet is immersed in a heap of iron filings and pulled
out. The amount of iron filling clinging to the
(a) North pole is almost equal to the south pole.
(b) North pole is much more than the south pole.
(c) North pole is much less than the south pole.
(d) Magnet will be same all along its length.
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