Magnétisme

 
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Mag 1.1 Matières magnétiques et amagnétiques

Principle

The students should understand that objects, which are made of iron − or, at least, contain iron − are attracted by a magnet. They should further become aware that both poles of a magnet are identical in their effects on iron ...

 
Détails

Numéro d´article: P1085600

Mag 1.2 Pôles et pôlarité

Principle

The pupils should understand

  • that that it is at the two ends of a bar magnet, the magnetic poles, that the strongest forces appear.
  • why the two ends of a magnet are called the north and the south poles.
  • how one can identify the two poles.
  • which forces appear between ...
 
Détails

Numéro d´article: P1085700

Mag 1.3 Force magnétique

Principle

The pupils learn that

  • magnetic forces also act when a magnet and an iron object are not in contact.
  • the magnetic force increases with decreasing distance.
  • the magnetic force depends on the size of the attracted object.
  • the magnetic force can pass through materials which ...
 
Détails

Numéro d´article: P1085800

Mag 2.1 Magnétisation et démagnétisation

Principle

The pupils learn how to magnetize and de-magnetize iron obejcts and are able to explain these events with the help of the concept of elementary magnets.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic phenomena

Tasks

To produce magnets from ...

 
Détails

Numéro d´article: P1085900

Mag 2.2 Séparation d'aimants

Principle

The students should learn that, on dividing a magnet into two pieces, magnets having north and south poles are always produced. It is not possible to produce a magnet with only one pole.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic ...

 
Détails

Numéro d´article: P1086000

Mag 2.3 Action commune de plusieurs aimants

Principle

The pupils should observe and be able to explain that magnets lying next to each other produce a stronger effect than an identical, single magnet when the two magnets are so positioned that identical poles face one another; when the magnets are arranged so that opposite poles face ...

 
Détails

Numéro d´article: P1086100

Mag 3.1 Visualisation des lignes de champ

Principle

The pupils should gain a first impression of the structure of a magnetic field.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic phenomena

Tasks

To illustrate the shape of a magnetic field using bar magnets and iron powder.

...
 
Détails

Numéro d´article: P1086200

Mag 3.2 Direction des lignes de champ

Principle

The pupils should learn that one can make a magnetic field visible with directional lines whose direction is determinded by starting the lines from the north pole. The pupils should obtain an impression of the spatial organization of the magnetic field.

Benefits

Quick and easy ...

 
Détails

Numéro d´article: P1086300

Mag 3.3 Image des lignes de champ de deux pôles identiques

Principle

The pupils should identify the principal course of field lines between identical magnetic poles.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic phenomena

Tasks

To investigate, using iron powder and the magnetic field sensor, the field ...

 
Détails

Numéro d´article: P1086400

Mag 3.4 Image des lignes de champ de deux pôles différents

Principle

The pupils should identify the principal course of filed lines between opposite magnetic poles.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic phenomena

Tasks

To investigate the field pattern between two opposite magnetic poles using iron ...

 
Détails

Numéro d´article: P1086500

Mag 3.5 Champ magnétique terrestre

Principle

The students should become aware of the factors which may have an influence when determining the direction with a magnet and obtain an impression of the shape of the Earth's magnetic field.

Benefits

Quick and easy experiment for qualitatively understanding of magnetic ...

 
Détails

Numéro d´article: P1086600

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