Final answer:
Vibrating electrons in atoms emit electromagnetic radiation, which can be of various types depending on the energy level of the electron vibrations.
Step-by-step explanation:
When electrons in atoms vibrate, they emit electromagnetic radiation, which can range from radio waves to gamma rays depending on the energy of the vibrations. Unlike sound waves emitted by a tuning fork, which are mechanical waves requiring a medium to travel through, electromagnetic waves are transverse waves that can travel through the vacuum of space. The phenomenon where electrons emit electromagnetic radiation is the underlying principle behind many technologies, such as radios, microwaves, X-rays, and various other applications across the electromagnetic spectrum.