As described by J. Guo on LinkedIn in the article “Exploring the Applications of Magnets in Physics Experiments,” magnets are essential components in both fundamental physics demonstrations and advanced scientific experiments. Their unique properties allow them to illustrate various physical laws, from motion and energy to electromagnetism and materials science.
In mechanics, magnets are used to demonstrate basic principles like action and reaction forces, as well as energy transfer. They can simulate potential energy fields and create dynamic systems that exhibit oscillation or rotational motion. These examples provide a tangible way to observe conservation of momentum and energy in motion. In the field of electromagnetics, magnets play a vital role in showcasing the concept of electromagnetic induction, where moving a magnet within a closed loop generates an electric current. They are also used to visualize magnetic field lines and to study electromagnetic wave generation.