This is the sun. It gives us visible light which helps us see. Visible light is used to help us in our daily lives doing our daily thing. Visible light is the portion of the elctromagnetic spectrum that is visible to the human eye.
This is a television. It uses radio waves and in which gathers signal from a source and displays whatever it is broadcasting on a screen.
Radio waves are used for communication such as broadcasting for televisions, radios, satellite transmissions, and mainly communication.
This is a microwave oven. How does it work you ask? Well, it is called a "microwave" for a reason. This microwave oven uses a device called a Magnetron that produces microwaves. The microwaves reflect off the metal interior and causes water molecules from the food to vibrate, in which creating friction between molecules that produces heat, thus cooking the food.
Infrared waves are also called Infrared light. It's electromagnetic radiation's wavelength is longer than those of visible light. You can use thermal goggles to see the heat emitted by organic beings like humans, animals, and what not.
This is a nuclear powerplant. It uses Gamma waves or Gamma rays which ionizes electromagnetic radiation. It is obtained by the decay of an atomic nucleus. Gamma can also be used for medicinal purposes such as radiotherapy, Industrial for sterilization and disinfection, and worse of all, The nuclear industry, those that make powerful Nukes that can terrorize an entire area with permanent damages.