In free space in a vacuum, EM energy travels at 300,000 km/sec
The energy is E=hf = hc/w where f is frequency, c is the velocity and w is the wavelength.
good answer but its none of them light energy is radiant energy
That energy is called "electromagnetic waves" or "electromagnetic energy".
In a vacuum, all electromagnetic waves have equal velocity.
the energy that makes the electromagnetic spectrum is electromagnetic radiation
Gamma waves have the highest frequency (and energy) of all the electromagnetic waves. Gamma Ray Bursts (GRB) from outer space (and that's about all we know of them!) have extraordinary high energies, and hence frequencies.
Light is a form of electromagnetic energy.
Electromagnetic energy travels in waves.
I would call it an electromagnetic wave, or electromagnetic energy.
Energy transferred by electromagnetic waves is called radiation.
Answer = Velocity Velocity is the speed of light and, the speed of light, is a constant among Electromagnetic Radiation in the vacuum of space.
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.