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- 1. Multiple Choice
When a magnet is suspended freely it always aligns itself in -------- direction?
North
N-S
N-W
N-E
- 2. Multiple Choice
----- is the only natural magnet.
Magnetite
Ebonite
Cobalt
Nickel
- 3. Multiple Choice
Which of the following is not a non-magnetic substance?
Glass
Wood
China ware
Nickel
- 4. Multiple Choice
Which of the following gets attracted to a magnet?
Copy book
Silver spoon
Comb
Common pins
- 5. Multiple Choice
The North end of the freely suspended magnet points towards -------?
Geographical North
Geographical South
Geographical East
Geographical West
- 6. Multiple Choice
like poles of magnets -------- each other.
Attract
Repel
Both a and b
None
- 7. Multiple Choice
When a S pole a magnet in brought near the N pole of a freely suspended magnetic needle, then it -----------?
None
Repels
It rotates
Attracts
- 8. Multiple Choice
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
- 9. Multiple Choice
electric bell is an example of _____________magnet.
Bar magnet
Cylindrical magnet
Electromagnet
Horseshoe magnet
- 10. Multiple Choice
--------type of magnet is used in cranes to lift heavy containers from ships.
a)Bar magnet
b)Cylindrical magnet
c)Electromagnet
d)Horseshoe magnet
- 11. Multiple Choice
Magnetic poles
Always exist in pairs
Sometimes exist in pairs
Always exist separately
Some times exist separately
- 12. Multiple Choice
True or False: All metals are attracted to magnet.
TRUE
FALSE
- 13. Multiple Choice
Amy used a magnet to hold one piece of paper on the refrigerator. Later, she tried to use the same magnet to hold a stack of four pieces of paper, and the magnet wouldn't stick to the fridge. Why did this happen
The magnet needs glue
The magnet couldn't hold due to the thickness of the paper
Paper repels magnets
A magnet isn't attracted to the refrigerator
- 14. Multiple Choice
Where on a magnet is the force the strongest
Poles
Middle
Repel
- 15. Multiple Choice
there are how many poles in a magnet
1
5
3
2
- 16. Multiple Choice
Maglev stands for
magnetic train
magnetic leave
magnetic levigation
- 17. Multiple Choice
Magnet looses it magnetic power on
Heating
Hammering
Dropping from height
All of these
- 18. Multiple Choice
Which two metals will be attracted by a magnet?
Iron and cobalt
Gold and Silver
Aluminium and Lead
Copper and Cobalt
- 19. Multiple Choice
What will happen when these magnets are brought close together?They will attract each other.They will repel each other.Both magnets will turn to the leftBoth magnets will turn to the right - 20. Multiple ChoiceEarth acts like a giant magnet because its center is made up MOSTLY ofgranitelimestoneironnickel
- 21. Multiple ChoiceA magnet is broken into 7 pieces. How many north poles are formed from these seven pieces?2 poles6 poles5 poles7 poles
- 22. Multiple ChoiceThis is a picture of a ________________ magnet.barcirclehorseshoepaddle
- 23. 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.
- 24. 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
- 25. 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
- 26. 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
- 27. Multiple Choice
Two magnets are placed close to each other as shown below. Which set will attract each other?
- 28. Multiple Choice
Name the shape of the magnet in the given image
Freeze magnets
Bar magnets
Horse shoe magnet
None of them
- 29. Multiple Choice
Who discovered magnetic compass?
Magnes
William Gilbert
Han Dynasty
Hans Christian Ørsted
- 30. Multiple Choice
Where was the magnetic compass discovered first?
U.S.A
U.K
India
China
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