It means that the total amount of energy in a closed system - a system that has no contact with the outside world - will neither increase nor decrease.
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.
It means that energy cannot be created nor destroyed, but it can change from one form to another.(for example, mechanical energy to heat energy.)
It is the Law of Conservation of Energy, aka the First Law of Thermodynamics.The concept of energy is one of the most fundamental concepts of science.This is the first law of thermodynamics and it is worth saying in several ways.(A) Energy is conserved.(That is short and accurate answer but non-scientists are not used to the word "conserved" being used in this way. But, scientists use it to mean "Stays the same" all the time.)(B) Energy can change from one form of energy to another, but energy can not be created or destroyed.(This is a fundamental law of Nature and the first law of thermodynamics, that energy of a closed system can never change. Sometimes it is said that "the total energy of the universe is always the same." )Discussion:Nature provides us with the Law of Conservation of Energy, whichever way you want to say it. It was about 400 years ago that science started to understand energy. At first it was only kinetic energy, the energy of motion, that was observed unchanged.Soon this was expanded to include gravitational potential energy. Later this expanded to other forms such as elastic potential energy, heat energy, chemical energy, nuclear energy, electrical and many other forms, including the famous "mass energy," E=mc2.How grand to know that the first law of thermodynamics says that we will never run out of energy. Alas, the second law says that Entropy is the problem and energy cannot always be used to do work.Aside: There is a big discussion in cosmology now about "dark energy." This should not be confused with the possibility that maybe energy is not conserved. The truth is that cosmologists have no idea what this "dark energy" is and it is not even a sure thing that it is energy.)
Do you mean "matter or energy"?. Strictly not, in the sense that it never disappears. Matter can be thought of as condensed energy, via Einstein's E=mc2. Even if you "destroy" matter (mass) in a nuclear explosion, it is really converted into sound, heat and radiation, and some of the radiation may leave this planet. But it isn't destroyed.
It implies the law of conservation of energy. Energy can neither be created nor destroyed. It can oonly be changed from one form to another.
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.
Because over time many scientists believe we have evolved. Our ancestors couldn't drive to the store for a mean, so they had to adapt to store energy. You need energy to complete and task. Energy isn't created or destroyed.
Energy is cannot be created nor destroyed it can only be moved.
It means that energy can't be created or destroyed. The total amount of energy remains constant.
It means that energy cannot be created nor destroyed, but it can change from one form to another.(for example, mechanical energy to heat energy.)
Energy creates the sun and everything which is why it can be destroyed energy isn't created it was created by itself therefore energy is powerful on everyone in the whole world
It is the Law of Conservation of Energy, aka the First Law of Thermodynamics.The concept of energy is one of the most fundamental concepts of science.This is the first law of thermodynamics and it is worth saying in several ways.(A) Energy is conserved.(That is short and accurate answer but non-scientists are not used to the word "conserved" being used in this way. But, scientists use it to mean "Stays the same" all the time.)(B) Energy can change from one form of energy to another, but energy can not be created or destroyed.(This is a fundamental law of Nature and the first law of thermodynamics, that energy of a closed system can never change. Sometimes it is said that "the total energy of the universe is always the same." )Discussion:Nature provides us with the Law of Conservation of Energy, whichever way you want to say it. It was about 400 years ago that science started to understand energy. At first it was only kinetic energy, the energy of motion, that was observed unchanged.Soon this was expanded to include gravitational potential energy. Later this expanded to other forms such as elastic potential energy, heat energy, chemical energy, nuclear energy, electrical and many other forms, including the famous "mass energy," E=mc2.How grand to know that the first law of thermodynamics says that we will never run out of energy. Alas, the second law says that Entropy is the problem and energy cannot always be used to do work.Aside: There is a big discussion in cosmology now about "dark energy." This should not be confused with the possibility that maybe energy is not conserved. The truth is that cosmologists have no idea what this "dark energy" is and it is not even a sure thing that it is energy.)
Do you mean "matter or energy"?. Strictly not, in the sense that it never disappears. Matter can be thought of as condensed energy, via Einstein's E=mc2. Even if you "destroy" matter (mass) in a nuclear explosion, it is really converted into sound, heat and radiation, and some of the radiation may leave this planet. But it isn't destroyed.
Energy can neither be created or destroyed, only transformed. Therefore in science terms, one can not produceenergy, only transform it.
In a chemical reaction, energy is transformed. You also need to remember that energy is never lost or made, it is transformed from one form to another.
It implies the law of conservation of energy. Energy can neither be created nor destroyed. It can oonly be changed from one form to another.
to renew the energy - to reuse it. that's why it will never run out. but more people need to start renewing energy otherwise the energy will run out