Energy neither created or destroyed

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energy neither created or destroyed

Quote by Einstein: “Energy cannot be created or destroyed, it can o...”

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Neither Created, Nor Destroyed - Waste to Energy - John Koker - TEDxOshkosh

The conservation of energy is an absolute law, and yet it seems to fly in the face of things we observe every day. A battery produces power.

The Physics of Death (and What Happens to Your Energy When You Die)

In a typical car, the initial starting energy is stored in a battery. The chemicals in the charged-up battery are not in their lowest free-energy state. Then once the motor starts, the energy comes from combining the fuel with oxygen, which also lowers the chemical free-energy. By atoms jiggling we just mean that they move around, with some kinetic energy. They also squash into each other as they jiggle, and that raises their potential energy.

A Changed State

That's a pretty good question, but in order to answer it we have to clarify precisely what it is physics says about the first law of thermodynamics. The first law of thermodynamics doesn't actually specify that matter can neither be created nor destroyed, but instead that the total amount of energy in a closed system cannot be created nor destroyed though it can be changed from one form to another. Mass became another form of energy that had to be included in a thorough thermodynamic treatment of a system. The first thing we have to do is determine what a "closed system" is. When we look at a physical situation and draw an imaginary circle around it, we're defining a system.

By using our site, you acknowledge that you have read and understand our Cookie Policy , Privacy Policy , and our Terms of Service. Physics Stack Exchange is a question and answer site for active researchers, academics and students of physics. It only takes a minute to sign up. We usually say that the ultimate source of energy for earth is the Sun. So this means that sun creates energy but according to the law of the conservation of energy energy can neither be created nor destroyed, so how does the energy come into the sun? That is just an example. We know that energy is transformed from one form to another but is not created and destroyed.

The laws of thermodynamics define fundamental physical quantities temperature, energy, and entropy that characterize thermodynamic systems. In order to avoid confusion, scientists discuss thermodynamic values in reference to a system and its surroundings. Everything that is not a part of the system constitutes its surroundings. The system and surroundings are separated by a boundary. For example, if the system is one mole of a gas in a container, then the boundary is simply the inner wall of the container itself.

5 thoughts on “Quote by Einstein: “Energy cannot be created or destroyed, it can o...”

  1. A video discussing the law of conservation of mass as well as the conservation of energy and mass-energy.

  2. But what if instead of looking at death from a biological perspective, we examine it from a physics standpoint?

  3. In physics and chemistry, the law of conservation of energy states that the total energy of an isolated system remains constant; it is said to be conserved over time. This law means that energy can neither be created nor destroyed; rather.

  4. The first law of thermodynamics, also known as Law of Conservation of Energy, states that energy can neither be created nor destroyed; energy can only be.

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