2. What are we going to learn today?What are we going to learn today?
What the characteristics of magnets areWhat the characteristics of magnets are
That magnets can repel and attract eachThat magnets can repel and attract each
otherother
How magnets behaveHow magnets behave
What happens when you put two magnetsWhat happens when you put two magnets
togethertogether
3. What are the characteristics ofWhat are the characteristics of
magnets?magnets?
They can attract some materialsThey can attract some materials
They can also repel other magnetsThey can also repel other magnets
They are usually made of ironThey are usually made of iron
They have two ends called magneticThey have two ends called magnetic
polespoles
4. What do all these new wordsWhat do all these new words
actually mean?actually mean?
MagnetMagnet
A stone or a piece of metal that attracts someA stone or a piece of metal that attracts some
other metal.other metal.
AttractAttract
To pull towards each other.To pull towards each other.
RepelRepel
To push away from each other.To push away from each other.
PolesPoles
The ends of a magnet.The ends of a magnet.
5. What do the poles do?What do the poles do?
When a magnet is held from a string:When a magnet is held from a string:
The north pole points northThe north pole points north
The south pole points… can youThe south pole points… can you
guess?guess?
How do we know this?How do we know this?
We can measure it with a compass!We can measure it with a compass!
On school magnets, theOn school magnets, the REDRED pole is thepole is the
north pole and thenorth pole and the BLUEBLUE pole is thepole is the
south.south.
6. But what happens if you put twoBut what happens if you put two
magnets together?magnets together?
Talk to your partner- what do you think?Talk to your partner- what do you think?
So let’s try it.So let’s try it.
First of all,First of all, northnorth toto southsouth……
southsouth toto northnorth……
northnorth toto northnorth……
southsouth toto southsouth……
7. What did we find out?What did we find out?
So now we know that “like” poles repel eachSo now we know that “like” poles repel each
other…other…
and that “opposite” poles attract each other.and that “opposite” poles attract each other.
They do this because there is a FORCE between
them.
