Save
...
4.7 Magnetism and electromagnetism
Magnetism
Magnetic fields
Save
Share
Learn
Content
Leaderboard
Learn
Created by
Wide-eyedPiglet53808
Visit profile
Cards (15)
Magnetic field
The
region
around a
magnet
where a
force
acts on another
magnet
or on a
magnetic material
Magnetic field line
An
imaginary line
which indicates the
direction
of
force
caused by a
magnet
Direction
of a magnetic field
From the
north
(seeking) pole of a magnet to the
south
(seeking) pole
How magnetic field lines indicate the direction of the field
The
field lines
have an
arrows
on them which point from
north
to
south
How magnetic field lines indicate the strength of the field
The
closer
the lines, the
stronger
the magnetic field
Where the magnetic field is the strongest
At the
poles
Effect of distance on the strength of a magnetic field
The strength of the magnetic field
decreases
as the distance from the magnet
increases
Magnetic field between attracting magnets
The
magnetic fields combine
to produce a
uniform magnetic field
Uniform magnetic field
A magnetic field that has the
same strength
at every point which is represented by
parallel field lines
Magnetic field between
repelling magnets
The magnetic fields
cancel
out
Detecting magnetic fields
A magnetic field is
invisible
, but it can be
detected
using a
compass
Iron filings
Small pieces
of
iron
used to show the
shape
of a
magnetic field
Plotting compass
Small
magnetic compass used to show the
shape
and
direction
of a
magnetic field
The
Earth's magnetic field
A
magnetic field
produced by the
Earth's core
, which is made from
iron
and
nickel
How a compass works
The
needle
of a compass is a small
bar magnet
that points in the direction of the
Earth’s magnetic field