Khan Academy
Khan Academy: Inverse Square Law (Method of Oscillation)
Here we compare the speed of compass oscillation vs. distance from a magnet. What kind of relationship do we observe? Is it linear? [2:08]
Khan Academy
Khan Academy: Are Two Magnets Stronger Than One?
A brief experiment that looks at whether the power of two magnets stuck together will increase the overall force.
Mocomi & Anibrain Digital Technologies
Mocomi: Magnetic Powers of Different Magnets
The video demonstrates an experiment using magnets to recognize that different magnets have different strengths and uses. [0:57]