MCQ Questions for Class 6 Science: Ch 13 Fun with Magnets

MCQ Questions for Class 6 Science: Ch 13 Fun with Magnets

1. Which of the following gets attracted to a magnet?
(a) Copy book
(b) Silver spoon
(c) Comb
(d) Common pins
► (d) Common pins

2. Magnetism of a magnet is lost by doing which of the following acts
(a) Keeping in a box
(b) Heating
(c) Hammering
(d) Both b and c
► (d) Both b and c

3. When a magnet is suspended freely it always aligns itself in _______ direction?
(a) North
(b) N-S
(c) N-W
(d) N-E
► (b) N-S

4. The North end of the freely suspended magnet points towards _____?
(a) Geographical North
(b) Geographical South
(c) Geographical East
(d) Geographical West
► (a) Geographical North

5. In which of the following a permanent magnet is not used?
(a) In magnetic door catchers
(b) Loudspeakers
(c) In compasses
(d) None of these
► (d) None of these

6. Magnets lose their properties significantly if
(a) Left in the open
(b) Touched with iron
(c) Dropped from a height repeatedly
(d) None of these
► (c) Dropped from a height repeatedly

7. The end of a free hanging magnet which point towards North is called
(a) South pole
(b) Middle pieces
(c) North pole
(d) Magnetic part
► (c) North pole

8. The property of attracting iron or other magnetic materials is called
(a) Refraction
(b) Magnetism
(c) Retardation
(d) Reflection
► (b) Magnetism

9. Which of the following does not get demagnetised when a powerful magnet is kept near it
(a) CD
(b) music system
(c) Cell phone
(d) Comb
► (d) Comb

10. How many north and south poles are present in a magnet if it is broken into 6 pieces without loss of magnetism?
(a) Six
(b) Twelve
(c) Two
(d) Zero
► (b) Twelve

11. Which of the following cannot be used to make a magnet?
(a) Cobalt
(b) Iron
(c) Ebonite
(d) Steel
► (c) Ebonite

12. The material that attracts iron is
(a) Rubber
(b) Glass
(c) Silver
(d) Magnet
► (d) Magnet

13. Like poles of magnets ______ each other.
(a) Attract
(b) Repel
(c) Both a and b
(d) None
► (b) Repel

14. Magnet was first discovered about 5000 years ago in the rocks of
(a) Magalia
(b) Munich
(c) Manipur
(d) Magnesia
► (d) Magnesia

15. Lodestone is a
(a) Soft stone having shining surface
(b) Stone having magnetic property
(c) Stone having iron
(d) Stone having dark black colour
► (b) Stone having magnetic property

16. Which of the following is not a magnetic substance?
(a) Nickel
(b) Silver
(c) Cobalt
(d) Iron
► (b) Silver

17. _______ is the only natural magnet.
(a) Magnetite
(b) Ebonite
(c) Cobalt
(d) Nickel
► (a) Magnetite

18. Magnetic strength of the magnet is
(a) Concentrated at one of the poles of the magnet
(b) Concentrated at both the poles of the magnet
(c) Distributed uniformly throughout the magnet
(d) Concentrated in the centre of magnet
► (b) Concentrated at both the poles of the magnet

19. ______  is a device used by pilots and navigators used to find the direction.
(a) Barometer
(b) Thermometer
(c) Magnetic compass
(d) None
► (c) Magnetic compass

20. ______ is the surest test of magnetism.
(a) Attraction
(b) Rotation
(c) Repulsion
(d) None
► (c) Repulsion

21. Magnet was discovered by
(a) Neutron
(b) Magnes
(c) J.C.Bose
(d) C.V.Raman
► (b) Magnes

22. Which of the following is incorrect?
(a) To increase the magnetic strength, increase the number of strokes while creating magnets.
(b) To increase the magnetic strength, increase the number of coils around the nail.
(c) Magnetic force is a pulling force only.
(d) Magnet may lose its magnetic property when heated to a very high temperature.
► (c) Magnetic force is a pulling force only.

23. Electric bell is an example of  ______ magnet.
(a) Bar magnet
(b) Cylindrical magnet
(c) Electromagnet
(d) Horseshoe magnet
► (c) Electromagnet

24. When a magnet is placed on a plastic plate with common pins spread on it, then _____
(a) Pins stick all around the magnet
(b) Pins stick at the middle of the magnet
(c) Pins stick at the ends of the magnet
(d) None
► (c) Pins stick at the ends of the magnet

25. When a N pole of a bar magnet is brought near the north pole of a freely suspended magnetic needle, then it __________?
(a) Attracts
(b) Repels
(c) It rotates
(d) None
► (b) Repels
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