Electromagnetic waves are a type of wave that can travel through empty space and various materials. They are created by the movement of charged particles and consist of oscillating electric and magnetic fields that are perpendicular to each other. These waves can vary in wavelength and frequency, which determines their type, such as radio waves, microwaves, infrared, visible light, ultraviolet, X-rays, and gamma rays. Electromagnetic waves play a crucial role in many aspects of daily life. For example, radio waves are used for communication, while visible light allows us to see. Additionally, X-rays are utilized in medical imaging, demonstrating the diverse applications of these waves across different fields.