"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."
The law that states that energy cannot be created or destroyed, only transformed from one form to another.
Work: The concept of work is essential to understanding the conservation of energy. It is defined as the product of force and displacement.
Kinetic energy: This is the energy possessed by an object due to its motion.
Potential energy: This is the energy possessed by an object due to its position or configuration relative to others.
Conservation of energy: This principle states that energy cannot be created or destroyed; it can only be converted from one form to another.
Mechanical energy: This is the sum of an object's kinetic and potential energy.
Thermal energy: This is the energy associated with the motion of particles in a substance.
Electrical energy: This is the energy associated with the flow of electrons in a circuit.
Chemical energy: This is the energy associated with the bonds between atoms and molecules.
Nuclear energy: This is the energy associated with the nucleus of an atom.
Law of conservation of mass-energy: This principle states that the total mass and energy in a closed system are conserved.
Heat: This is the transfer of thermal energy from one object to another.
Temperature: This is a measure of the average kinetic energy of the particles in a substance.
Entropy: This is a measure of the disorder or randomness of a system.
Energy transformation: This is the conversion of energy from one form to another.
Power: This is the rate at which energy is transferred or converted.
Kinetic Energy Conservation: This refers to the conservation of energy in motion, such as the movement of a car or a ball.
Potential Energy Conservation: This refers to the conservation of energy that is stored within an object, such as the energy stored in a stretched rubber band or a compressed spring.
Mechanical Energy Conservation: This refers to the conservation of energy that is associated with an object's motion and position, such as the energy used to lift an object against gravity.
Thermal Energy Conservation: This refers to the conservation of energy associated with heat and temperature, such as the heat generated by a fire or by the friction of two objects rubbing together.
Electric Energy Conservation: This refers to the conservation of energy associated with electric currents, such as the energy used to power a light bulb or an electric motor.
Chemical Energy Conservation: This refers to the conservation of energy associated with chemical reactions, such as the energy stored within food or the energy released during combustion.
Nuclear Energy Conservation: This refers to the conservation of energy associated with nuclear reactions, such as the energy used to power nuclear power plants.
"Energy can neither be created nor destroyed; rather, it can only be transformed or transferred from one form to another."
"For instance, chemical energy is converted to kinetic energy when a stick of dynamite explodes."
"If one adds up all forms of energy that were released in the explosion, such as the kinetic energy and potential energy of the pieces, as well as heat and sound, one will get the exact decrease of chemical energy in the combustion of the dynamite."
"special relativity shows that mass is related to energy and vice versa by E = mc^2, the equation representing mass–energy equivalence."
"science now takes the view that mass-energy as a whole is conserved."
"any object with mass can itself be converted to pure energy, and vice versa. However, this is believed to be possible only under the most extreme of physical conditions, such as likely existed in the universe very shortly after the Big Bang or when black holes emit Hawking radiation."
"Given the stationary-action principle, conservation of energy can be rigorously proven by Noether's theorem as a consequence of continuous time translation symmetry; that is, from the fact that the laws of physics do not change over time."
"A consequence of the law of conservation of energy is that a perpetual motion machine of the first kind cannot exist; that is to say, no system without an external energy supply can deliver an unlimited amount of energy to its surroundings."
"Depending on the definition of energy, conservation of energy can arguably be violated by general relativity on the cosmological scale." Please let me know if you would like more study questions.