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Iron nails
Matter is made up of ?
Particles
When I look closely to the iron particles,
how do they look like?
Lined upScattered
When I bring a magnet close to an iron,
what happens?
Does it attract or not?
So, what happens to the iron particles?
Lined upScattered
Lined up
Types of magnets
SN S N
SN SN
What will happen when the ends of the two bar
magnets are placed close together?
SN SN
SN S N
S N SN
Magnetic field
• Area of magnetic force around a magnet
• The field lines are closer at the poles rather than the center.
The closer the lines thestronger thespot
Draw the magnetic field
Draw the magnetic field
Draw the magnetic field
N s
Draw the magnetic field
Earth is a big magnet
What’s different in this picture?
The geographical north and south
poles differ than the magnetic ones.
What are magnets made of?
iron nickel cobalt
Magnetic & Non magnetic materials
1-Iron
2-Steel
3-Nickel
4-Cobalt
1-Copper
2-Gold
3-Silver
4-Leather
5-Wood
6-Rubber
7-Plastic
If you want to store a magnet for a
long time, what shall you do?
The keeper preserves the magnetic
field
How do you preserve a bar magnet?
Directions of the magnetic field
What if I don’t have a natural magnet
but I need one!!!
Can I make a magnet?
Only if we have:
1. Nail (any good electrical conductor material)
2. Coil (any good electrical conductor material)
3. Battery (Electric source)
4. Stapler pins(To test the magnet)
• Check the video to see how to make an
Industrial Uses of magnets
1-Vehicle and
other Scrapings
Industrial Uses of magnets
2-Recycling and
separations
Safe handling of Magnets
1) Don’t bang magnets together because they will break and small
pieces will go flying off.
2) Wear safety goggles so that the small pieces will not go into your
eyes.
3) Don’t drop the magnets. Not only will they break, it will affect the
strength of the magnet.
4) Slowly allow the magnets to come together.
5) Wear protective gloves.
6) Health hazards when in contact with food and drinking water.
7) Don’t heat it or place it in high temperatures as it gets weaker.
Storage of Magnets
1) Don’t place strong magnets near video tape or audio
tape or parts of the tape will be erased.
2) Don’t place it near credit cards, the magnetic strip on
the back will be erased.
3) Don’t use magnets near mobile phones, interactive
white boards or computers.
4) If placed close to a TV screen or computer monitor, the
screen’s colour will become distorted.
5) Don’t store in moist places, like places where rainwater
or dust can reach.

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Magnets

  • 2. Matter is made up of ? Particles
  • 3. When I look closely to the iron particles, how do they look like? Lined upScattered
  • 4. When I bring a magnet close to an iron, what happens? Does it attract or not?
  • 5. So, what happens to the iron particles? Lined upScattered
  • 8.
  • 9. SN S N SN SN What will happen when the ends of the two bar magnets are placed close together?
  • 10. SN SN SN S N S N SN
  • 11. Magnetic field • Area of magnetic force around a magnet • The field lines are closer at the poles rather than the center. The closer the lines thestronger thespot
  • 15. N s Draw the magnetic field
  • 16. Earth is a big magnet What’s different in this picture?
  • 17. The geographical north and south poles differ than the magnetic ones.
  • 18. What are magnets made of? iron nickel cobalt
  • 19. Magnetic & Non magnetic materials 1-Iron 2-Steel 3-Nickel 4-Cobalt 1-Copper 2-Gold 3-Silver 4-Leather 5-Wood 6-Rubber 7-Plastic
  • 20. If you want to store a magnet for a long time, what shall you do?
  • 21. The keeper preserves the magnetic field
  • 22. How do you preserve a bar magnet?
  • 23. Directions of the magnetic field
  • 24. What if I don’t have a natural magnet but I need one!!! Can I make a magnet? Only if we have: 1. Nail (any good electrical conductor material) 2. Coil (any good electrical conductor material) 3. Battery (Electric source) 4. Stapler pins(To test the magnet)
  • 25. • Check the video to see how to make an
  • 26. Industrial Uses of magnets 1-Vehicle and other Scrapings
  • 27. Industrial Uses of magnets 2-Recycling and separations
  • 28. Safe handling of Magnets 1) Don’t bang magnets together because they will break and small pieces will go flying off. 2) Wear safety goggles so that the small pieces will not go into your eyes. 3) Don’t drop the magnets. Not only will they break, it will affect the strength of the magnet. 4) Slowly allow the magnets to come together. 5) Wear protective gloves. 6) Health hazards when in contact with food and drinking water. 7) Don’t heat it or place it in high temperatures as it gets weaker.
  • 29. Storage of Magnets 1) Don’t place strong magnets near video tape or audio tape or parts of the tape will be erased. 2) Don’t place it near credit cards, the magnetic strip on the back will be erased. 3) Don’t use magnets near mobile phones, interactive white boards or computers. 4) If placed close to a TV screen or computer monitor, the screen’s colour will become distorted. 5) Don’t store in moist places, like places where rainwater or dust can reach.