conservation of energy

noun phrase

: a principle in physics: the total energy of an isolated system remains constant irrespective of whatever internal changes may take place with energy disappearing in one form reappearing in another

Examples of conservation of energy in a Sentence

Recent Examples on the Web

But in this scenario, the only physical principles involved are conservation laws, such as the conservation of energy or the conservation of momentum and angular momentum. —Manon Bischoff, Scientific American, 9 Sep. 2024

The second law of thermodynamics, the first law of thermodynamics, the conservation of energy, the principles of statistical mechanics, the properties of radiation — all of that is 100% dependent on a set of principles that include the zeroth principle of physics, that information is conserved. —Quanta Magazine, 11 Apr. 2024

Wagner places a lot in this category: linear algebra, the law of conservation of energy, the cure for scurvy, the paintings of van Gogh and Vermeer, the poetry of Dickinson and Keats, the compositions of Johann Sebastian Bach. —Diana Gitig, Ars Technica, 24 June 2023

Price at time of publication: $12 Hot Wheels Criss Cross Crash Track Set View On Amazon View On Walmart View On Kohls.com Hot Wheels are such a fun way to teach scientific principles about speed and the conservation of energy and mass—without being in a classroom. —Dorian Smith-Garcia, Parents, 8 Nov. 2023

Hot Wheels are such a fun way to teach scientific principles about speed and the conservation of energy and mass—without being in a classroom. —Dorian Smith-Garcia, Parents, 8 Nov. 2023

Word History

First Known Use

1853, in the meaning defined above

Kids Definition

conservation of energy

: a principle in physics that states that energy can neither be created nor destroyed and that the total energy of a system by itself remains constant

Medical Definition

conservation of energy

noun

: a principle in physics: the total energy of an isolated system remains constant irrespective of whatever internal changes may take place with energy disappearing in one form reappearing in another

called also first law of thermodynamics, law of conservation of energy