Light Energy Facts
6 energy cannot be destroyed or created only transformed.
Light energy facts. Our universe and our world are awash in light. Interesting light energy facts. Facts about light energy will discuss about the electromagnetic radiation mainly used to call the visible light. Studying light and its interaction with matter is the job for optics.
There are also many uses of light. Each act as a source of light. It means the light rays have both electric and magnetic behavior in them. Light travels at a speed of about 300 000 km s.
Historically another important source of light for humans has been fire from ancient campfires to. The word energy comes from the greek energeia meaning operation activity. Uv lights are often used by forensic scientists to see details that are not seen by the naked eye. Photons are the particles that light is made up of which are like tiny packets of energy.
This electromagnetic radiation can be divided in different ranges based on wavelength or frequency. The main source of light on earth is the sun. This spectrum has gamma rays x rays ultraviolet rays visible rays infra. Solving problems with light have preoccupied many scientists throughout history.
3 albert einstein defined energy as mass multiplied by the speed of light squared or e mc2. 3 food contains energy which is measured in calories or joules. Light energy is a form of electromagnetic radiation that can be seen by the human eye. The wavelength of the light which can be perceived by human being is around 400 nm to 700 nm.
More interesting and important facts about light energy are explained here. One fact about light energy is that plants use light to create chemical energy in a process called photosynthesis. Other facts are light is a type of electromagnetic energy and light energy can be converted into other forms of energy. However until recent none of them have managed to answer such a complex question.
During photosynthesis plants use light energy to create chemical energy. The light energy is always associated with the sense of sight for the human eye may perceive this type of light. 10 fact no 10. Light is an electromagnetic energy.
The sunlight that we see here on earth actually left the sun 10 minutes before. This article about light energy helps students explore the nature of light the movement of light natural and man made sources of light and the special behaviors and properties of light. Sunlight provides the energy that green plants use to create sugars mostly in the form of starches which release energy into the living things that digest them this process of photosynthesis provides virtually all the energy used by living things. There are many example we see in our routine life carrying light energy like lightened candle flash light fire electric bulb kerosene lamp stars and other luminous bodies etc.