Which term describes forms of radiant energy?

The term that describes forms of radiant energy is "electromagnetic." Electromagnetic energy encompasses a wide range of waves in the electromagnetic spectrum, including visible light, radio waves, infrared radiation, ultraviolet light, X-rays, and gamma rays. These waves travel through space and can transfer energy and information, making them essential in various applications, from communication systems to imaging technologies.

Radiant energy is fundamentally tied to the properties of electromagnetic waves, which move at the speed of light and can exist in a vacuum, unlike other forms of energy such as electrical energy, which refers specifically to the energy carried by electric charges. Therefore, electromagnetic accurately captures the broader category that includes all forms of radiant energy. As a result, this term is the most appropriate in this context.