energy refers to all types of energy that moves with the velocity
of light in a harmonic wave pattern.
waves are described in terms of their velocity, wavelength, and frequency.
- All electromagnetic
waves travel at the same velocity commonly known as the speed of light.
This velocity may change as electromagnetic energy propagates through
media of different densities.
- The electromagnetic
spectrum is the range of wavelengths that the energy travels in a
- All forms of
matter radiate a range of electromagnetic energy.
- Peak intensity
of the energy shifts toward the shorter wavelengths as temperature
of the matter being detected increases.
- The graphic below
illustrates the visible light color distribution
as a function of wavelength.