Revision as of 04:29, 13 April 2008

Outcomes

• Pupils understand that magnets exert forces on each other and other magentic materials. These forces can be attraction or repulsion.
• Pupils can understand how to plot a magnetic field around:
• one bar magnet
• two bar magnets, attracting and repelling.
• Pupils understand that the direction of a magnetic field line indicates the direction of the force on a tiny north pole magnet placed in the filed at that point.
• Pupils can see that a uniform field can be created between to attracting bar magnets.

Specification References

6.2 recall that magnets repel and atract other magnets, and attract magnetic substances.

6.3 recall the properties of magnetically hard and soft materials

6.4 understand the term 'magnetic field line'

6.5 understand that magnetism is induced in some materials when they are placed in a magnetic field.

6.6 sketch and recognise the magnetic field pattern for a permanent bar magnet and that between two bar magnets

6.7 know how to use two permanent magents to produce a unifrom magnetic field.

Starter

Recall from lower school work that magnets have both north and south poles. Talk about idea of a 'magnetic force field'. Forces 'push' or 'pull' : 'attract' or repel'.

Starter practical: Use mini turntables or upturned watchglasses to show that N and N repel, S and S repel but N and S attract.

Main Body of Lesson

Plenary

Homework

Additional Information

Resources Required

Textbook References

Website References

Skills Addressed

Safety/Hazards

Notes