A magnet is an object that creates a magnetic field around itself. This magnetic field can exert a force on other magnetic materials, like iron, nickel, and cobalt.

Here's a breakdown:

* Magnetic Field: Imagine invisible lines of force coming out of the magnet's poles (north and south).

* Force: When another magnetic material enters this field, the lines of force interact with the material's own magnetic properties, causing it to be attracted or repelled.

So, magnets can definitely exert a force on other materials.