energy

What we really need, energy or strength. This was a question asked to me at the beginning of the semester, I was made to think. Energy is a property of a substance that can be converted to work, heat or radiation. It is the job to do, to generate heat, to illuminate, or to radiate. Power is the proportion of energy consumed per unit of time. Energy is necessary to obtain energy, so I think immediately that the answer is energy. But I heard that the answer is power and incredible, but it really made me happy after explanation.

Let's summarize what you learned in this lesson. Radiant energy is the energy of oscillating particles. Radiant energy is one of many types of energy and energy is energy. Radiant energy is transmitted in the form of electromagnetic waves or waves of electrical and magnetic properties. Different electromagnetic waves can be distinguished by their wavelength or the distance between their waves and their frequency or the number of waves formed over a period of time. High frequency and short wavelength electromagnetic waves are high energy waves, low frequency long wave electromagnetic waves are low energy waves.

The electromagnetic spectrum is a continuum of all electromagnetic waves arranged according to frequency and wavelength. The sun, the earth, and other objects radiate electromagnetic energy of various wavelengths. Electromagnetic energy passes through the space in the form of a sine wave at the speed of light. The wavelength is the distance from the peak to the peak (see the figure below). Light is a special type of electromagnetic radiation that can be seen by the human eye, but this energy exists over a wide range of wavelengths. Micron is the basic unit for measuring the wavelength of electromagnetic waves. The spectrum is divided into wavelength-based parts. The shortest wave is a gamma ray with a wavelength of 10e - 6 microns or less. The longest radio waves are radio waves of several kilometers wavelength. The visible region contains spectra in the narrow range from 0.4 micron (blue) to 0.7 micron (red).