Energy & Forces - Forces & their effects - Forces - G7
Development of Target

EF-B3.3
EF-B3.3

Describe the interaction of magnets in terms of the forces of attraction and repulsion.
 The ends of a bar magnet are called poles.
The 2 poles of a magnet are called the north and south poles. Magnetism is strongest at the poles of a magnet.
A magnet can exert a force on some metals and this force is called magnetism.
The north and south poles of different magnets will attract each other. Two north poles will repel each other as will two south poles.

 

1 Introduce the term pole.
2 Magnets are normally stamped N and S. Ask pupils what these stand for.
3 Pupils already know that a magnet attracts paper clips.
Investigate : Which part of a magnet can hold the most paper clips?
4 Introduce terms attraction and repulsion. What happens when one magnet is turned around.
Make labelled drawings to describe what happens.