kinetic energy

noun

: energy associated with motion

Examples of kinetic energy in a Sentence

Recent Examples on the Web
Examples are automatically compiled from online sources to show current usage. Read More Opinions expressed in the examples do not represent those of Merriam-Webster or its editors. Send us feedback.
And yet the total energy released in that event was about 1023 joules, or about a millionth of Earth’s rotational kinetic energy. Phil Plait, Scientific American, 18 Dec. 2025 The generic answer is that temperature is a measure of the average kinetic energy of the atoms. Georgina Jedikovska, Interesting Engineering, 12 Nov. 2025 Where the nucleus and electron have the greatest amounts of kinetic energy, the smallest energy is left over for the neutrino. Big Think, 28 Oct. 2025 When the vehicle is slowing down and the motors are regenerating kinetic energy into electrical energy, the PEM also converts that AC flow back to DC to charge the battery. Sam Abuelsamid, Forbes.com, 19 Sep. 2025 See All Example Sentences for kinetic energy

Word History

First Known Use

1870, in the meaning defined above

Time Traveler
The first known use of kinetic energy was in 1870

Browse Nearby Words

Cite this Entry

“Kinetic energy.” Merriam-Webster.com Dictionary, Merriam-Webster, https://www.merriam-webster.com/dictionary/kinetic%20energy. Accessed 31 Dec. 2025.

Kids Definition

kinetic energy

noun
: energy associated with motion

Medical Definition

kinetic energy

noun
: energy associated with motion

More from Merriam-Webster on kinetic energy

Last Updated: - Updated example sentences
Love words? Need even more definitions?

Subscribe to America's largest dictionary and get thousands more definitions and advanced search—ad free!