Stop for a moment and think of all of the places where magnets are used in your home. There are the magnetic catches on the...

Physics Narrative 5-11 11-14

Although the simple classification of magnetic and non-magnetic materials set out above is quite adequate for physics 11–14...

Physics Narrative 11-14

The everyday world of magnets is really all about those magnetic materials that can be magnetised to make permanent magnets...

Physics Narrative 5-11 11-14

Permanent magnets retain their magnetism, while other materials are attracted to magnets (they are magnetic) but do not...

Physics Narrative 11-14

Supposing you take a bar magnet and suspend it freely at its mid-point on a length of thread. Once the magnet stops spinning...

Physics Narrative 5-11 11-14

Take a simple bar magnet–the sort that is found in physics lessons–in the form of a rectangular block of steel. Bring another...

Physics Narrative 5-11 11-14

Imagine two bars of iron placed side-by-side on a table. One of them is a bar magnet, the other is not. From the outside it is...

Physics Narrative 11-14

Supposing you have an iron nail. The nail is made from iron, a magnetic material, but it is not a magnet at present. How could...

Physics Narrative 11-14

A fascinating feature of the working of magnets is that one magnet can attract or repel another without being in physical...

Physics Narrative 11-14

For quantitative work, the fact that a magnet will cause a force to act on a current-carrying wire is used to measure the...

Physics Narrative 11-14

As long ago as 600 BCE, the Greeks knew that a certain form of naturally occurring iron ore, known as lodestone, has the...

Physics Narrative 11-14

Beneath the Earth's crust and mantle lies a complex internal structure believed to be a dynamic core of molten iron, perhaps...

Physics Narrative 11-14