Those are called radio waves.
Radio Waves have the longest wavelength of any EM radiation, so they usually have the least energy.
first of all electromagnetic waves are energy waves. and we call electromagnetic waves RADIATION.
Electromagnetic waves transfer energy.
Energy transferred by electromagnetic waves is called radiation.
Ultrasonic waves are high frequency sonic waves. They're sound, which is mechanical energy. Electromagnetic waves are waves of electromagnetic energy, like radio waves or light. Mechanical energy is different from electromagnetic energy, hence the reason for ultrasonic waves not taking the form of electromagnetic waves.
With longest wavelength to shortest Radio waves, micro waves, infra red, visible radiations, ultra violet, X-ray and Gamma ray
electromagnetic waves are longitudinal (like a slinky).
mechanical waves carry mechanical energy and electromagnetic waves carry electromagnetic energy.
Through Radiation
Electromagnetic energy travels in waves.
That energy is called "electromagnetic waves" or "electromagnetic energy".
A piece of wood is not considered electromagnetic energy. Electromagnetic energy refers to the energy carried by electromagnetic waves, such as light, radio waves, and X-rays. Wood does not emit or interact with electromagnetic waves in the same way that energy does.