# Changes

,  02:18, 26 August 2014
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#If not attracted by magnet?

#If not attracted by magnet?

#In which direction bar magnet rest when freely suspended it. or magnetic needle or Mariner's compass.

#In which direction bar magnet rest when freely suspended it. or magnetic needle or Mariner's compass.
#Recognize the north and south poles of magnet.
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#Identify the north and south poles of magnet.
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#Does every magnet have a north and south pole?

#Is north-north or south-south attracted?

#Is north-north or south-south attracted?

#Is north-south repelled?

#Is north-south repelled?

#What happened when kept the bar magnet near the magnetic needle or mariner's compass?

#What happened when kept the bar magnet near the magnetic needle or mariner's compass?

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#What happens when we break a magnet in half?
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#Can you break off just the north (or just the south) end of a magnet?
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#What is the strongest pole?

==Evaluation (Questions)==

==Evaluation (Questions)==
1.If a magnetic needle placed along the north and south pole of a bar magnet as shown in the figure, what is the polarity of the a b c and d.      mark 2
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#If a magnetic needle placed along the north and south pole of a bar magnet as shown in the figure, what is the polarity of the a b c and d.      mark 2

[[File:magnet3.jpg|200px]] <br>

[[File:magnet3.jpg|200px]] <br>

*Pole of    a  ________                *pole of    b  _______ <br>

*Pole of    a  ________                *pole of    b  _______ <br>

*Pole of    c _________                *Pole of    d _________ <br>

*Pole of    c _________                *Pole of    d _________ <br>
2.Draw
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#You are in ship at night & have a bar magnet. How do you recognize the east and west direction? <br>
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#Iron feelings are mix with tea powder? How to separate it quickly?
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#Get a ring-shaped magnet and break it with pliers or a tap with a hammer. Try to put it back together. What happens? Why?
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4.

==Question Corner==

==Question Corner==

#List the properties of magnet.

#List the properties of magnet.
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#What are the properties of the magnetic lines of force?

#What are the properties of the magnetic lines of force?

#Draw the direction of magnetic lines of force of a bar magnet.

#Draw the direction of magnetic lines of force of a bar magnet.
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#Who discovered magnets?
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#Who were the scientists who helped us to understand magnets?
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#What is magnetite?
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#How does a compass work?
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#Who first used a compass?
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#What are some uses of magnets?

'''To link back to the topic page'''

'''To link back to the topic page'''

[[Electromagnetic_induction|'''Back''']] <br>

[[Electromagnetic_induction|'''Back''']] <br>