1, different sources: Magnets are naturally occurring magnetic minerals, also known as magnets, and their components are mainly Fe3O4. On the other hand, magnets are artificial magnetic objects, and their components can be metals such as iron, cobalt and nickel.

2. Different magnetic force: The magnetic force of magnets is relatively weak, and generally only a few metals such as iron, cobalt and nickel can be attracted. Magnets are more powerful and can attract more metal objects.

3. Different uses: Due to the weak magnetic force of magnets, magnets are generally only used to make small objects such as compasses and magnetic therapy instruments. Magnets can be used in motors, generators, electromagnets, speakers and other equipment because of their powerful magnetic force and wide applications.