It means to utilize a energy in a proper way.
It means that energy can't be created or destroyed. The total amount of energy remains constant.
well, i always thought it meant to save energy
The law of "conservation of energy" states that energy can neither be created nor destroyed by any chemical or physical means. These days, many scientists are talking about conservation. Conserving energy does mean saving energy.
what is the symbol and unit of energy
Solar energy is the energy present in sunlight, or energy that is generated through the use of sunlight.
I'm assuming your talking about saving energy as in, a household and environmental way. Energy and power is something we take for granite, being able to flick the switch and boom, light. Soon we will not be able to do that, and gas, electricity, etc, etc, etc, will not be available for everyone. So conserving energy is something very critical we should be doing on a daily basis. Such as; going in to get the food instead of the drive through, and if the drive through, shut your car off in between spots, shut the light off in rooms your not in, or not using, basic basic things like that, will help are environment and your future life, or your kids future life.
it means to save resources.
Energy can neither be created or destroyed, only transformed. Therefore in science terms, one can not produceenergy, only transform it.
Kinetic energy is energy of movement. If an object moves it has kinetic energy. For instance, when you walk chemical energy in your food is converted to kinetic energy in your muscles.
The Efficiency of a system is the ratio (Input Energy / Output Energy). The fraction is usually expressed as a percentage.
This is a term of economics, used to refer to the evaluation of the portion of available resources used, that are renewable or replaceable.In the environmental sciences this evaluation considers the productivity, diversity, and uses of biological systems.
science is derived from greek roots that mean "to know". Earth Science is just a small subset of the broad category of evidence-based thought called science. It, of course deals with science that explains things about the earth: environmental issues, rock formation, water cycles, etc.