Here's why:
* Magnetic Domains: All materials are made up of tiny regions called magnetic domains. In a non-magnetized material, these domains are randomly oriented.
* Alignment: When you rub the paper clip against the magnet, the magnetic field of the magnet aligns the magnetic domains within the paper clip in a specific direction. This alignment creates a net magnetic field within the paper clip, making it a magnet itself.
* Temporary Magnetism: The magnetism induced in the paper clip is usually temporary. The domains can easily become misaligned again if the paper clip is heated or if it's jostled around.
In short, the paper clip becomes a temporary magnet by having its magnetic domains aligned in a specific direction due to the influence of the strong magnet.
