Available Answers

1. 1.

   Write true or false for each statement. Rewrite the false statement correctly.

   1. A magnet can attract only the magnetic substances.
   2. Magnetic poles exist in pairs.
   3. Earth behaves like a magnet.
   4. Poles can be separated from a magnet.
   5. Two magnetic lines of forces in a magnetic field intersect each other.
   6. The direction of magnetic field at all points near a bar magnet is the same.
2. 2.

   Fill in the blanks :

   1. Magnet is a term derived from _________________.
   2. A freely suspended magnet points in the _________________ direction.
   3. In a magnet, _________________ have the maximum magnetic effect.
   4. A magnet has _________________ at its centre.
   5. _________________ is the most sure test of magnetism.
   6. _________________ cannot be isolated from a magnet.
   7. Magnetic lines of force due to a bar magnet are directed from _________________ pole to the _________________ pole outside a magnet.
   8. The south pole of the earth's magnet is near the geographic _________________.
3. 3.

   Match the following:

   Earth behaves like a Freely suspended magnet Magnetic lines of force

   never intersect resets in N-S direction magnet

4. 4.

   Tick the most appropriate answer :

   (a) If we suspend a magnet freely, it will settle in

   1. east-west direction
   2. north-south direction
   3. north-east direction
   4. east-south direction

   (b) The attraction of a magnetic substance by poles. of a magnet is

   1. minimum
   2. zero
   3. maximum
   4. none of the above

   (c) For a given magnet

   1. north pole is stronger than south pole
   2. both poles are of equal strength
   3. south pole is stronger than north pole
   4. center of magnet is stronger than poles

   (d) Earth's magnet has its south pole situated near the

   1. geographic north
   2. geographic south
   3. geographic west
   4. geographic east.

   (e) An example of natural magnet is

   1. iron
   2. steel
   3. lodestone
   4. none of the above

   (f) magnetic lines of force due to a bar magnet are

   1. continuous and intersecting
   2. discontinuous and non-intersecting
   3. continuous and non-intersecting
   4. continuous and crowded at the middle of the magnet.
5. 5.

   How will you show that magnet has directive property ?
6. 6.

   What are the important uses of a magnet ?