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- 1. Multiple Choice
Observe the pictures A and B given in pictures carefully Which of the following statement is correct for the above given pictures?
(a) In A, cars 1 and 2 will come closer and in B, cars 3 and 4 will come closer.
(b) In A, cars 1 and 2 will move away from each other and in B, cars 3 and 4 will move away.
(c) In A, cars 1 and 2 will move away and in B, 3 and 4 will come closer to each other.
(d) In A, cars 1 and 2 will come closer to each other and in B, 3 and 4 will move away from each other.
- 2. Multiple Choice
Three magnets A, B and C were dipped one by one in a heap of iron filing. Fig. 13.3 shows the amount of the iron filing sticking to them. The strength of these magnets will be
A>B>C
A<B<C
A=B=C
A<B>C
- 3. Multiple Choice
North pole of a magnet can be identified by
(a) Another magnet having its poles marked as North pole and South pole.
(b) Another magnet no matter whether the poles are marked or not.
(c) Using an iron bar.
(d) Using iron filings.
- 4. Multiple Choice
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.
- 5. Multiple Choice
What is a natural magnet known as?
A) Toroid
B) Lodestone
C) Haematite
D) Solenoid
- 6. Multiple Choice
Which of the following statements is true?
A) The north pole of a magnet will attract the north pole of another magnet.
B) Artificial magnets can be made from non-magnetic materials also.
C) Lodestone is an artificial magnet.
D) Isolated magnetic poles do not exist.
- 7. Multiple Choice
Where is the force of attraction of a magnet the maximum?
A) At all sides
B) All over the magnet
C) At its poles
D) At its centre
- 8. Multiple Choice
In which direction does a magnet always point when suspended freely?
A) South-West
B) North-South
C) East-West
D) West-South
- 9. Multiple Choice
Where does a compass work?
A) Only in oceans or seas
B) Only on land, where the earth's magnetic field is strong
C) Only on high mountains
D) At all the places within the earth's magnetic field
- 10. Multiple Choice
What is the special property of magnetic substances?
A) They are repelled by magnets.
B) They are attracted by magnets.
C) They are both attracted and repelled by magnets.
D) They cannot be made into magnets.
- 11. Multiple Choice
Which of the following will NOT be attracted by a magnet?
A) Iron
B) Nickel
C) Gold
D) Cobalt
- 12. Multiple Choice
A How is a compass useful to us?
A) In finding the altitude of a place
B) In finding only the north of a place
C) In finding all the directions of a place
D) In making artificial magnets
- 13. Multiple Choice
Nikhilesh has a small piece of metal and a thread. He wants to find whether the metal is a magnet or not. Which of these things would he need?
A) A piece of magnetic substance
B) A magnet or a compass
C) A piece of non-magnetic substance
D) He does not require anything more
- 14. Multiple Choice
Which of the following ways will NOT cause a magnet to lose its magnetism?
A) Heating it strongly over a flame
B) Dropping it on the floor repeatedly
C) Coating it with a layer of oil
D) Hitting it with a hammer repeatedly
- 15. Multiple Choice
Two magnets are placed close to each other as shown below. Which set will attract each other?
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