Static Electricity Brainpop - Electricity Five topics include a general introduction to electricity, static electricity, batteries, energy sources, thunderstormsand atoms. North poles point north, south poles point south. Like poles repel, unlike poles attract.
Magnetic forces attract only magnetic materials.
Magnetic forces act at a distance. While magnetized, temporary magnets act like permanent magnets. A coil of wire with an electric current flowing through it becomes a magnet. Putting iron inside a current-carrying coil increases the strength of the electromagnet. A changing magnetic field induces an electric current in a conductor.