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CBSE Questions for Class 6 Physics Fun With Magnets Quiz 6 - MCQExams.com
CBSE
Class 6 Physics
Fun With Magnets
Quiz 6
The end of the magnet that points towards North is called its ______.
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North Pole
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South seeking
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North seeking
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South Pole
Explanation
The end of the magnet that points towards North is called its
North Pole or North seeking.
However, in actual, the North Pole of the magnet is actually pointing towards the magnetic South Pole of the earth due to attraction between opposite poles.
How should a bar magnet be stored?
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bar magnets should be kept in dark
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bar magnets should be kept with other magnets
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bar magnets should be kept separately
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bar magnets should be kept in pairs with their unlike poles on the same side.
Explanation
While storing bar magnets, they should be kept in pairs with their unlike poles on the same side. They must be separated by a piece of wood while two pieces of soft iron should be placed across their ends.
It is not necessary to store magnets.
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True
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False
Explanation
The statement is False.
Magnets should be stored when not in use or else they will loose their properties.
The directive property of magnets is useful for:
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Magnetism
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Travellers to find direction.
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Produce electric current
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All of the above
Explanation
The directive property of magnets is useful for travellers to find direction. A freely suspended magnet will always align itself along north-south direction.
While storing bar magnets, they should be separated by ______.
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a piece of wood
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a piece of plastic
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a piece of rubber
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a piece of bar magnet
Explanation
While storing bar magnets, they should be kept in pairs with their unlike poles on the same side. They must be separated by a piece of wood while two pieces of soft iron should be placed across their ends.
How can magnets loose their properties?
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By heating
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hammered
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Drop the magnet from height
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All of the above
Explanation
Magnets loose their properties if they are heated, hammered or dropped from
some height
For a bar magnet, one should keep a
piece of iron across the poles.
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True
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False
Explanation
If you keep piece iron of iron near bar magnet, iron piece will magnetise and one end act like South Pole where as other will act like North Pole. Opposition pole will attract and same pole will repel that’s result magnet and iron piece will align.
Hence we can’t keep there’s to across each other hence given statement is false.
Two pieces of soft iron should be
placed across the ends of a bar magnet to store magnet.
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True
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False
Explanation
Soft iron pieces are placed across the ends of bar magnets when stored such pieces are called magnetic keepers. If two magnets are placed side by side there will be mutual repulsion or attraction that weakens the magnetic strength. So magnets are placed side by side with opposite poles near to each other.
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