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Q 1.
Write the properties of magnet?
Ans.
1.It attracts objects like Nikcel and Iron.
2.Likes poles of two magnet repel each other and opposite are attracts each other. |
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Q 2.
Name the shapes of artificial magnet?
Ans.
1.Bar magnet
2.Horse shoe and cylindrical magnet. |
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Q 3.
In olden days, sailors used to find directions by suspending by?
Ans.
A piece of magnet.
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Q 4.
Name te the poles of magnet?
Ans.
North and South.
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Q 5.
Name the natural magnet?
Ans.
Magnetite.
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Q 6.
How compass is helpful?
Ans.
To find directions of places.
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Q 7.
What are the properties of compass?
Ans.
1.A compass is used to show the direction.
2.The needle of a compass is magnet. 3.The needle of a compass always indicates the North and South pole of the earth. |
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Q 8.
How compass work?
Ans.
At all the places within the earth's magnetic field.
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Q 9.
In which direction does a magnet always point when suspended freely?
Ans.
North-south.
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Q 10.
Where the force of attraction of a magnet is maximum?
Ans.
At its poles.
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Q 11.
What is natural magnet known as?
Ans.
Lodestone.
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Q 12.
Name a substance which retain its magnetic properties for a longer period of time is called?
Ans.
Magnetic substances.
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Q 13.
Name the artificial magnet?
Ans.
1Bar magnet
2.Horse shoe magnet |
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Q 14.
How the magnet loose its property?
Ans.
When it is heated, hammered aur dropped from some height.
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Q 15.
Name the magnetic materials?
Ans.
Iron, Cobalt, Nickel.
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