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State four important properties of a bar magnet?
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How are the magnets kept safely? What is the role of keepers in storing the magnets?
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State three important uses of a magnet.
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What is the magnetic induction? Explain with the help of a diagram.
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Answer the following.
Why is it not possible to isolate a single magnetic pole?
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Answer the following.
Can you bring two similar poles of two different magnetic close together easily? Why?
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Tick the most appropriate answer.
The surest test of magnetism is
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Fill in the blank.
Magnetic poles always exist in ...............
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State if the following statement is true or false. Correct the statement if it is false.
Attraction is the surest test for magnetism.
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State if the following statement is true or false. Correct the statement if it is false.
As we move away from a magnet, its attraction power weakens.
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State if the following statement is true or false. Correct the statement if it is false.
Whenever a magnet is not in use, it should be stored along with other magnets.
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Give a reason for the following.
Iron is a magnetic substance.
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Answer the following in short.
What is a magnet? Differentiate between natural and artificial magnets.
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Answer the following in short.
If a bar magnet is placed over iron filings, where will the attraction of the iron fillings be
- maximum?
- minimum?
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Define the following term regarding a bar magnet:
Magnetic field
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Answer the following in detail.
Write a short note on the theory of magnetism.
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Answer the following in detail.
List four methods of magnetizing a magnetic substance.
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Answer the following in detail.
How is the single-touch method of magnetism different from the double-touch method?
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Answer the following in detail.
How can a magnet be demagnetized?
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Define the following term regarding a bar magnet:
Magnetic axis
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