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.
Chat with our AI personalities
When scientists say energy can never be destroyed, they are referring to the law of conservation of energy, which states that energy can only be transferred or transformed from one form to another, but it cannot be created or destroyed. This principle is a fundamental concept in physics and helps explain the behavior of energy in various systems.
Conservation of energy refers to the principle that energy cannot be created or destroyed, only transferred or transformed. Saving energy, on the other hand, involves reducing the amount of energy consumed to minimize waste and promote sustainability. While conservation of energy is a fundamental law of physics, saving energy is a behavior that individuals and organizations can practice to reduce their environmental impact.
Conservation of energy in science refers to the principle that energy cannot be created or destroyed, only transformed from one form to another. This principle is fundamental in understanding how energy behaves in the universe and is a key component of many scientific theories and laws. By applying the conservation of energy, scientists can analyze and predict the behavior of energy in various systems and processes.
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.
The law you are referring to is the First Law of Thermodynamics, also known as the law of conservation of energy. This law states that energy can neither be created nor destroyed; it can only change forms or be transferred from one system to another.
In science, energy is the ability to do work or cause change. It exists in many forms, such as kinetic, potential, thermal, chemical, and electromagnetic energy. Energy can be converted from one form to another but cannot be created or destroyed.