Magnetism

Why do some magnets attract while others repel? Scholars use clearly labeled permanent magnets to explore the attractive question. They compare the behavior of like versus opposite poles to find the answer.

The compass was first used in 206 B.C., but we didn't discover magnetic poles until 1263 A.D. Presentation begins with the history of magnetism before continuing on to magnetic fields, magnetic forces, electromagnets, currents,...

This unique resource explores magnetism at a high school level. Since most magnetism resources are quite primary, physics teachers will rejoice! This episode explains ferromagnetism and antiferromagnetism and how temperature affects the...

You'll be strangely drawn to this activity! Physical science pupils learn how compasses work in an interesting interactive. The content covers magnetic poles, Earth's magnetic field, and what would happen if Earth's poles swapped places.

This demonstration explores the effect of a permanent magnet on compass. [1:04]

Ever wonder how a compass worked to point you to the Arctic? Explore the interactions between a compass and bar magnet, and then add the earth and find the surprising answer.

Help your young scientists learn which materials are affected by magnetic fields with an activity that presents the information about different types of materials — diamagnetic, paramagnetic, and ferromagnetic — and their interaction...

Historically, humans have used many methods of finding due north. Using a hands-on activity, learners create their own compasses. They then test their compasses in their neighborhood or to assist with stargazing.

 The class must determine the magnetic properties of different materials, including aluminum and steel by sorting through materials using a magnet. Groups make a prediction on whether a material is magnetic and then perform...

Class members use mathematics in order to better understand magnetic forces and their interaction on charged particles. After a demonstration of the interaction between a magnet and an electron beam using a CRT computer monitor,...