ME6 - Magnets and magnetic field Flashcards
What do magnetics produce?
Magnetic fields
What do all magnets have?
- Two poles (north and south)
- The poles are the strongest part of a magnet
What is a magnetic field?
A region where magnetic materials (iron) experience a force
What do magnetic field lines show?
The size and the direction of the magnetic fields - always point from north to south
What happens if you place the north and south poles of two permanent magnets near each other?
It creates a uniform field between the two magnets (straight lines going from north to south)
What can you use to look at magnetic field lines?
Compasses and ion fillings
What do compasses and iron fillings do to make us see the magnetic fields?
Align themselves with the magnetic field
How can see the magnetic field with iron fillings?
Put a magnet(s) under a piece of paper and scatter the iron fillings on top
How can you see the magnetic field lines with compasses?
Use more than one compass/ a compass and move it around a magnet (trace the pathway on a piece of paper)
What do magnets affect?
Any magnetic materials or other magnets
Likes poles…
Repel
Opposite poles…
Attract
What happens when a magnet is brought near a magnetic material?
That material acts as a magnet (the magnetism has been induced by the original magnet)
What happens the closer the magnet and magnetic material get?
The stronger the induced magnetism will be
Far from the magnet…
Little induced magnetism
