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The law of conservation of energy states that the total amount of energy in an isolated system remains constant. A consequence of this law is that energy cannot be created nor destroyed. The only thing that can happen with energy in an isolated system is that it can change form, i.e. kinetic energy can become thermal energy.
Albert Einstein's theory of relativity shows that energy can be converted to mass (rest mass) and mass converted to energy. Therefore, neither mass nor pure energy are conserved separately, as it was understood in pre-relativistic physics. Today, conservation of "energy" refers to the conservation of the total mass-energy, which includes energy of the rest mass. Therefore, in an isolated system, mass and "pure energy" can be converted to one another, but the total amount of energy (which includes the energy of the mass of the system) remains constant.
Another consequence of this law is that perpetual motion machines can only work perpetually if they deliver no energy to their surroundings. If such machines produce more energy than is put into them, they must lose mass and thus eventually disappear over perpetual time, and are therefore impossible.
Wiki User
∙ 12y ago
Wiki User
∙ 14y agoThe law of conservation of energy states that energy itself cannot be created or destroyed, it can only change from one form to another. For example, from potential energy to kinetic energy.
However, this law does not apply with regards to nuclear fission and fusion.
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Conclusion of energy conservation?
the conclusion is sumthing which concludes so conclusion of energy conservation is to conserve energy fr futher generations.....:P;):)
What law states that energy cannot be created or destroyed?
Law of energy conservation. It shows that energy cannot be created or destroyed
What is low of conservation?
The law of conservation states that energy can never be created or destroyed, only changed into a different form.
What is always true according to the law of conservation?
There is no one "law of conservation", there are several laws, such as conservation of energy, conservation of mass, conservation of electric charge, conservation of rotational momentum, etc.What is always true is that there is SOME quantity that doesn't change in the case of a closed system.
What is energy conservation and why should citizens conserve energy?
Energy conservation is that energy cannot be created or destroyed it can be transferred or transformed. We conserve energy no matter what we do. What we are really being told is to conserve usable energy which is energy not in the form of heat. We are told this to avoid the heat death of the universe this is when all the usable energy is lost due to heat.
What meant by the principal of energy conservation?
Save the environment!M!
If the efficiency of a machine is always less than 1 why is the principal of conservation of energy still obeyed?
Conservation of energy is not violated because some of the energy is always lost as heat (due to friction).
What states have energy laws that state that energy can not be created or destroyed?
Law of conservation of energy. Energy can't be created or destroyed is the basic statement of the law of conservation of energy.
What has the author Michael A Kocis written?
Michael A. Kocis has written: 'An assessment of state emergency energy conservation planning' -- subject(s): Energy conservation, Emergency transportation, Transportation 'Issues for developing state emergency conservation plans' -- subject(s): Energy conservation, Emergency transportation, Transportation, Petroleum conservation
Which law state that energy cannot be created or destroyed?
law of conservation of energy.
What does the law of conservation of mass - energy state?
It states that energy can change but mass can not change Chuma.C
What does law conservation of energy state?
In a closed system, energy can neither be created nor destroyed.
What state of law of conservation of energy?
In a closed system, energy can neither be created nor destroyed.
What are some alike things to the law of conservation of matter?
There is the law of conservation of mass, and the law of conservation of energy. All three state: (Mass/Matter/Energy) cannot be created or destroyed, simply transferred.
What has the author Jim McCambridge written?
Jim McCambridge has written: 'Residential conservation service state plan' -- subject(s): Dwellings, Energy conservation, Energy policy
When referring to physics what is the law of conservation of energy?
The law of conservation of energy states that the energy cannot be created or destroyed. With respect to this, it continues to state that in a total system energy remains constant and energy is conserved over a period of time.
What does the law of conservation of motion state?
Energy can be neither created or destroyed but can be transformed to a different type of energy.
