Extra 40 MCQs with answers from Chapter:13 Fun with Magnets of Class 6 Science (CBSE):-
1. Who discovered magnets?
a) Albert Einstein
b) William Gilbert
c) Thales of Miletus
d) Greeks in Magnesia
Answer: d) Greeks in Magnesia
2. What are natural magnets made of?
a) Plastic
b) Iron
c) Lodestone
d) Copper
Answer: c) Lodestone
3. Which of the following is a magnetic material?
a) Plastic
b) Paper
c) Iron
d) Wood
Answer: c) Iron
4. Which of the following is NOT attracted by a magnet?
a) Steel
b) Copper
c) Iron
d) Cobalt
Answer: b) Copper
5. The two poles of a magnet are called:
a) North and South
b) East and West
c) Positive and Negative
d) Upper and Lower
Answer: a) North and South
6. What happens when like poles of two magnets are brought together?
a) They attract
b) They repel
c) They rotate
d) Nothing happens
Answer: b) They repel
7. Which of the following is NOT a property of magnets?
a) They have two poles
b) They attract magnetic materials
c) Like poles attract each other
d) Opposite poles attract each other
Answer: c) Like poles attract each other
8. What happens when a bar magnet is cut into two pieces?
a) Each piece will have only one pole
b) Each piece will have both poles
c) The magnet will lose its properties
d) The magnet will disappear
Answer: b) Each piece will have both poles
9. Which of the following is NOT a magnetic material?
a) Nickel
b) Cobalt
c) Aluminium
d) Iron
Answer: c) Aluminium
10. The region around a magnet where its force can be felt is called:
a) Magnetic space
b) Magnetic region
c) Magnetic field
d) Electric field
Answer: c) Magnetic field
11. Which shape of a magnet is commonly used in electric motors?
a) Bar magnet
b) Horseshoe magnet
c) U-shaped magnet
d) Cylindrical magnet
Answer: b) Horseshoe magnet
12. Which instrument is used to find directions?
a) Microscope
b) Barometer
c) Magnetic compass
d) Thermometer
Answer: c) Magnetic compass
13. What is the core of the Earth mainly made of?
a) Plastic
b) Iron and Nickel
c) Water
d) Aluminium
Answer: b) Iron and Nickel
14. The Earth itself behaves like a:
a) Magnet
b) Battery
c) Circuit
d) Insulator
Answer: a) Magnet
15. Which of the following is NOT a type of magnet?
a) Bar magnet
b) Ring magnet
c) Sphere magnet
d) Plastic magnet
Answer: d) Plastic magnet
16. A freely suspended magnet always aligns itself in which direction?
a) North-South
b) East-West
c) Up-Down
d) Random direction
Answer: a) North-South
17. Which of the following metals is used to make permanent magnets?
a) Aluminium
b) Iron
c) Copper
d) Silver
Answer: b) Iron
18. A magnet loses its magnetic properties when it is:
a) Heated
b) Cooled
c) Kept in water
d) Kept in air
Answer: a) Heated
19. The process of making an object magnetic is called:
a) Magnetism
b) Magnetization
c) Electrification
d) Attraction
Answer: b) Magnetization
20. Which of the following will NOT affect a magnet?
a) Hammering
b) Heating
c) Placing in water
d) Dropping on a hard surface
Answer: c) Placing in water
21. The force exerted by a magnet is called:
a) Gravitational force
b) Magnetic force
c) Electrical force
d) Nuclear force
Answer: b) Magnetic force
22. What happens when opposite poles of two magnets are brought close?
a) They repel
b) They attract
c) They rotate
d) They break
Answer: b) They attract
23. The stronger part of a magnet is:
a) At the center
b) At the ends (poles)
c) In the middle
d) All parts are equally strong
Answer: b) At the ends (poles)
24. Which magnet is used in MRI machines?
a) Bar magnet
b) Electromagnet
c) U-shaped magnet
d) Permanent magnet
Answer: b) Electromagnet
25. Magnets are used in which of the following devices?
a) Speakers
b) Refrigerators
c) Electric motors
d) All of the above
Answer: d) All of the above
26. What is the best way to store bar magnets?
a) By hanging them
b) By keeping opposite poles together
c) By throwing them in a box
d) By keeping them in water
Answer: b) By keeping opposite poles together
27. Which of the following will be attracted to a magnet?
a) Glass
b) Plastic
c) Steel
d) Paper
Answer: c) Steel
28. What happens when a magnet is broken into two pieces?
a) It loses its magnetism
b) Each piece will have two poles
c) It will not work
d) It will become non-magnetic
Answer: b) Each piece will have two poles
29. What is the shape of the Earth's magnetic field?
a) Square
b) Circular
c) Oval
d) Elliptical
Answer: c) Oval
30. What type of force is magnetism?
a) Contact force
b) Non-contact force
c) Chemical force
d) Gravitational force
Answer: b) Non-contact force
31. The north pole of a magnet is attracted to:
a) The Earth's north pole
b) The Earth's south pole
c) Any direction
d) The center of the Earth
Answer: b) The Earth's south pole
32. Magnets are used in which of the following transportation systems?
a) Airplanes
b) Maglev trains
c) Cars
d) Ships
Answer: b) Maglev trains
33. What is a temporary magnet?
a) A magnet that lasts forever
b) A magnet that loses its magnetism quickly
c) A natural magnet
d) A very strong magnet
Answer: b) A magnet that loses its magnetism quickly
34. What happens if we stroke an iron nail with a magnet in one direction multiple times?
a) The nail becomes a magnet
b) The nail loses its weight
c) The nail melts
d) The nail repels the magnet
Answer: a) The nail becomes a magnet
35. What is the best way to destroy the magnetic property of a magnet?
a) Keep it in a dry place
b) Heat it or hammer it
c) Store it properly
d) Keep it near another magnet
Answer: b) Heat it or hammer it
36. Why are magnets used in compasses?
a) They attract metals
b) They align in the North-South direction
c) They can create electricity
d) They have sharp edges
Answer: b) They align in the North-South direction
37. Why do magnets attract iron?
a) Iron is a good conductor of electricity
b) Iron is a magnetic material
c) Iron contains oxygen
d) Iron produces electricity
Answer: b) Iron is a magnetic material
38. What is the use of a horseshoe magnet?
a) It is only used for decoration
b) It has a strong magnetic field at its ends
c) It repels all metals
d) It loses its magnetism quickly
Answer: b) It has a strong magnetic field at its ends
39. What happens when an iron nail is placed near a magnet?
a) The nail gets repelled
b) The nail attracts the magnet
c) The nail gets magnetized
d) The nail loses weight
Answer: c) The nail gets magnetized
40. What will happen if we sprinkle iron filings around a magnet?
a) The filings will disappear
b) The filings will form a pattern along the magnetic field lines
c) The filings will burn
d) The filings will repel the magnet
Answer: b) The filings will form a pattern along the magnetic field lines
