Just about all our energy derives from the sun. Electromagnetic waves comprise the radiation we receive from the sun, and from each other. X-rays, visible light, microwave and radio waves are all examples of EM radiation. How fast a wave is bouncing up and down. EM waves comprise electric and magnetic fields that change over time and position, similar to the waves on a lake.
Electric forces cause it to move.
The latter shows the force on the electron and, consequently, its acceleration . On Friday we discussed the spectra of a source of EM waves. For example, what if we observed light from a source with a given temperature, T1. We then plot the intensity of the radiation according to its frequency or, conversely, its wavelength. Compared to the approximately 300 degree Earth, it emits over a broader bandwidth and with a higher peak frequency.