Magnetism (Grade 10 NSC Matric Physical Sciences): Flashcards
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Definition of magnetism
Definition of magnetism
Non-contact force between magnetic objects
What is a magnetic field?
What is a magnetic field?
Region where magnetic material experiences magnetic force
Examples of ferromagnetic materials
Examples of ferromagnetic materials
Iron, nickel, and cobalt
What are domains in ferromagnetic materials?
What are domains in ferromagnetic materials?
Regions where electrons' magnetic fields line up same direction
Magnetic poles rule
Magnetic poles rule
Always come in pairs (N and S), cannot be separated
Like magnetic poles behavior
Like magnetic poles behavior
Repel each other (N-N or S-S)
Unlike magnetic poles behavior
Unlike magnetic poles behavior
Attract each other (N-S)
Direction of magnetic field lines
Direction of magnetic field lines
Start at north pole, end at south pole
What is magnetic flux?
What is magnetic flux?
Number of magnetic field lines passing through a given area
What is retentivity?
What is retentivity?
Ability to retain magnetisation after external field removed