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Magnetic Field

Revision as of 12:38, 4 March 2019 by NRJC (talk | contribs)

Key Stage 3

Meaning

A magnetic field is the region around a magnet that affects other magnets or magnetic materials.

About Magnetic Fields

A magnetic field can be shown by placing a magnet under paper and then sprinkling iron filings on the paper.
A magnetic field is strongest at the poles of the magnet.
When a magnetic field is drawn the lines are extend from the North Seeking Pole to the South Seeking Pole of the magnet. The arrows on the field lines point from North to South.
MagneticField.png
MagnetIronFilings.png
The magnetic field lines point from north to south. Iron filings are a magnetic material so they can be used to show the magnetic field.

Examples

MagneticFieldLines.png
MagneticFieldLinesEarth.png
MagneticFieldLinesElectromagnet.png
The magnetic field of a bar magnet. The magnetic field of Earth. The magnetic field of an Electromagnet.
SolarFlare1.gif
This animation shows a solar flare curving back to The Sun due to a strong magnetic field


Key Stage 4

Meaning

This animation shows a solar flare curving back to The Sun due to a strong magnetic field.

A magnetic field is the region around a magnet in which magnets or magnetic materials experience a force.

About Magnetic Fields

A magnetic field can be shown by placing a magnet under paper and then sprinkling iron filings on the paper.
MagneticField.png
MagnetIronFilings.png
The magnetic field lines point from north to south. Iron filings are a magnetic material so they can be used to show the magnetic field.
When a magnetic field is drawn the lines are extend from the North Seeking Pole to the South Seeking Pole of the magnet. The arrows on the field lines point from North to South.
The strength of magnetic field is shown by how close together the magnetic field lines are.
A magnetic field is strongest at the poles of the magnet.
MagneticFieldRegions.png
The region marked A is in a stronger magnetic field than region B as shown by the number of field lines enclosed in the area.

Examples

MagneticFieldLines.png
MagneticFieldLinesEarth.png
MagneticFieldLinesElectromagnet.png
The magnetic field of a bar magnet. The magnetic field of Earth. The magnetic field of an Electromagnet.