Define Law of Conservation of Energy
The law of conservation of energy is defined for a system as, “The total amount of energy of a system remains constant with respect to time for the system”. It means that in a system the total energy remains the same.
I like to share this Conservation of Energy Formula with you all through my article.
The Law of Conservation of Energy States that
This law states that the energy contained in any system is constant over time. This law is formulated in nineteenth century. This is one of the fundamental laws of physics and any new study is based on this law. Due to this law it is impossible for any system to possess or destroy more energy then the total energy of the system.
State the Law of Conservation of Energy
The law of conservation of energy state that the total energy of the system remains same or constant when it is measured over time. It also means that the energy of the system may change the position or form in the system but it will always remains the constant.
Definition of Law of Conservation of Energy
The law of conservation is defined as, “In an isolated system, energy could neither be created nor be destroyed; it only changes form and position”. It means that the total energy of the system remains constant. It also means that the energy can change form (kinetic to potential or vice versa) or position in the system.
Law of Conservation of Energy Example
The best example of the law of conservation of energy is the electricity generated by water. Water is stored in dam and then it is allowed to fall down. Water in the dam possesses potential energy but when it is allowed to fall down the potential energy is converted to kinetic energy. This falling water rotates the turbine and the electricity is produced. The energy of water is transferred to the turbine which converts the kinetic energy to mechanical energy. Due to this mechanical energy the turbine rotates and this mechanical energy is converted to electric energy.
In this example we see that the energy is transformed from potential to kinetic to mechanical to electrical, but the total energy of the system remains the constant.
Examples of Law of Conservation of Energy
The example of conservation of energy is the free falling ball. At the start the ball only has potential energy and as it starts falling it gains kinetic energy. As it strikes the ground it only has kinetic energy. Due to the kinetic energy the velocity of the ball increases.
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