What is the definition of magnetism?

The definition of magnetism as an invisible force capable of mechanical work highlights the unique nature of magnetic interactions. Magnetism involves the ability of certain materials to exert attractive or repulsive forces without direct contact, allowing them to perform tasks such as moving objects or generating electricity. This is particularly relevant in various applications, such as electric motors and generators, where magnetic fields are used to convert electrical energy to mechanical work or vice versa.

Magnetism is inherently connected to the movement of charged particles, particularly electrons, which create magnetic fields. This significant principle enables magnetism to facilitate work rather than merely being an observable or static phenomenon. Thus, defining it as an invisible force capable of doing mechanical work encapsulates its functional and practical aspects in many technological contexts.