MAGNETISM
magnetism refers to the force of attraction or repulsion that acts between certain materials like iron, cobalt, and nickel. It is caused by the motion of electr...
magnetism refers to the force of attraction or repulsion that acts between certain materials like iron, cobalt, and nickel. It is caused by the motion of electr...
Magnets:
A magnet is an object that produces a magnetic field.
Magnets have two poles: North (N) and South (S).
Like poles repel, and unlike poles attract.
Magnetic and Non-Magnetic Materials:
Magnetic materials: Attracted to magnets (e.g. iron, steel, cobalt, nickel).
Non-magnetic materials: Not attracted to magnets (e.g. plastic, wood, copper).
Types of Magnets:
Permanent magnets: Retain their magnetism over time.
Temporary magnets: Become magnetic only when near a magnetic field.
Magnetic Field:
The region around a magnet where magnetic forces can be felt.
Represented using magnetic field lines that go from the North pole to the South pole.
Magnetization and Demagnetization:
Magnetization: Process of making a material magnetic.
Demagnetization: Removing the magnetic properties of a magnet.
Uses of Magnets:
Compasses, electric motors, generators, magnetic locks, etc.
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Caren Gatweri
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