An article defining what magnetic force is and how to calculate it.

This article helps explain the concept of electromagnetism as well as magnetic fields and the properties of the speed of light.

Understand and learn about the properties of space and time and the concept of relativity.

Can you think of an experiment that would let you see how magnetic force depends on distance?

Learn the convention for describing the direction of magnetic fields. Challenge questions are included.

This article discusses the properties of electromagnetic radiation and photons.