Magnets

15 April 2020

I am a horseshoe magnet
I am a horseshoe magnet
A lot of legends tell us about the discovery of magnets. The most popular one comes from an elderly shepherd named Magnets, who was herding his sheep in an area called Magnesia (Northern Greece), about 4,000 years ago. 

According to the story, it is said that both nails in his shoes and the metal tip of his staff became firmly stuck to the large, black rock on which he was standing. Later after that, people named that type of rock magnetite, after either Magnesia or Magnets (himself). 

However, after years of research, the scientist finally able to identify that type of large black rock was a lodestone, also known as a natural magnet. Through the development of science and technology, man-made magnets are eventually created. 

Therefore, the magnets such as bar, u-shape, horseshoe, ring and button are all man-made magnets. So, what is a magnet? 

Magnet is a stone or a piece of metal that attracts some other metals. Magnets create an area of the magnetic field around them. 

What is the use of magnets? 
Magnets are mostly found in electronic devices. Anything that has a motor uses a magnet. Televisions, computers and microwaves ovens all operate with magnets. Magnets can also be used to slow down roller coasters and subways. Another use of magnets is to keep refrigerator doors closed and many more. 

What are the characteristics of magnets?
Well, they are usually made of iron, able to repel and attract. It has two poles that are known as the south pole (S-pole) and north pole (N-pole). 
A pair of bar magnet
A pair of bar magnet
The blue end of a magnet is usually the south pole. The red end of a magnet is usually the north pole.
These magnets are attracting (S-pole and N-pole)
These magnets are attracting (S-pole and N-pole)

If you put two magnets together with different poles pointing towards one another, the magnets will pull towards each other. We say they attract each other. 

When two magnets are close, they create pushing or pulling forces on one another. These forces are strongest at the ends of the magnets. When the poles are different, they create a force of attraction while if the poles are like, they create a force of repulsion
repel
These two magnets are repelling (N-pole and N-pole). They are like poles (S-pole and S-pole will also repel)

If you try to put two magnets together with the same poles pointing towards one another, the magnets will push away from each other. We say they repel each other. 


PS
Attract: to pull towards each other
Repel: to push away from each other

Magnetic and non-magnetic materials 
Magnets can attract magnetic materials that are made of metals. Yet not all metals are magnetic. Metals that are magnetic such as iron and steel, while other metals like gold, copper, aluminium and others are not magnetic. 

To understand more about magnets, you may watch this video:


So that's the explanation of magnets, I hope that it can help you understand about it. 

Now, let's try this!
Now you understand that not all objects are magnetic. Can you identify magnetic and non-magnetic objects in your home? Please submit your answer in the following comment box!.

Your loyal Cap. Idaa 
Ciao

Learn also :

20 comments

  1. This is a best chapter that I ever learned

    ReplyDelete
  2. Good i like it now i understand about magnet not all things made of iron

    ReplyDelete
  3. Name:asyraf
    Non magnetic:towel
    Magnetic:key

    ReplyDelete
  4. Tasya 4a

    Iron,fridge,nails non magnetic= wooden table , plastic chair, wall

    ReplyDelete
  5. Yes. My fence,magnet toy, and others
    (by stoopid Al)

    ReplyDelete
  6. Magnetic key
    Non magnetic doll

    -from Mellania-

    ReplyDelete
  7. samuel/4A: magnetic object: iron spoon, paper clips, coca coal can, door keys, iron door handle, knife, hammer, scissor, milk can and iron fence.
    non-magnetic object: pencil, book, plastic bag, T-shirt, bed, wood cupboard, glass plate, lipstick, pillow and broom.

    ReplyDelete
  8. Muh nayaka dzaki jagaditha

    Magnet just can atract by magnetoc materials magnetic material such as iron and stee, while ather such as gold,copper,aluminium and ather that non magnetic materials

    ReplyDelete
  9. Muh nayaka dzaki jagaditha

    Magnet just can atract by magnetoc materials magnetic material such as iron and stee, while ather such as gold,copper,aluminium and ather that non magnetic materials

    ReplyDelete
  10. Non magnetic = table, chair, bag

    ReplyDelete
  11. Non magnetic : glass
    Magnetic : paper clip

    ReplyDelete
  12. Iknow a lot of discovery about magnets.if the pole is same and if we make it closer each other it will repel

    ReplyDelete
  13. Name Tsabit
    Non magnetic : glass
    Magnetic : paper clip

    ReplyDelete
  14. I like magnet because we can now what magnet can attrack and repel and magnet have two end that nort and south poles there is like poles and unlike poles and magnet have a diffrent name and diffrent shape like u shape magnet,bar magnet,ring magnet,button magnet,and horseshoe magnet and i like magnet because we can learned about how magnet produse.

    ReplyDelete
  15. Syakirahsalsabila16 April 2020 at 14:41

    Macnetic materials:key and nail
    Non magnetic materials:towel and socks

    ReplyDelete
  16. Name : Francis Rannu
    Magnetic:iron nails
    Non-magnetic: plastic bag

    ReplyDelete
  17. Hafizh example of magnetic things is=paper clip example of non-magnetic materials=paper

    ReplyDelete
  18. my name=Rico
    non magnetic materials=mirror
    magnetic materials=paper fastener

    ReplyDelete
  19. my name=Rico
    non magnetic materials=mirror
    magnetic materials=paper fastener

    ReplyDelete
  20. Non magnetic materials:chair, mirror, fan
    Magnetic materials:door handle batteries
    FROM RAFA 4A

    ReplyDelete

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