Magnets are objects that produce a magnetic field, which can attract or repel certain materials, primarily metals like iron, nickel, and cobalt. They have two poles: a north pole and a south pole. When two magnets are brought close together, opposite poles attract each other, while like poles repel.
Magnets are commonly used in various applications, such as in refrigerator doors, compasses, and electric motors. They can be found in everyday items, including credit cards and speakers, where they help convert electrical energy into sound or hold objects securely in place.