phys·​ics | \ ˈfi-ziks \

Definition of physics

1 : a science that deals with matter and energy and their interactions
2a : the physical processes and phenomena of a particular system
b : the physical properties and composition of something

Examples of physics in a Sentence

Recent Examples on the Web

The problem is simply physics and the speed of light. Gordon Mah Ung, PCWorld, "Nvidia disses the Radeon VII, vowing the RTX 2080 will crush AMD's ‘underwhelming’ GPU," 9 Jan. 2019 The academy is best known for awarding the Nobel Prizes in physics and chemistry. Bradley J. Fikes, sandiegouniontribune.com, "Superstar cancer researcher Tony Hunter of Salk Institute wins award, makes new finding," 4 Apr. 2018 Hawking’s work has inspired deep questions in physics and astrophysics, which has had a bearing on plans to build telescopes to explore the universe, including the Square Kilometre Array in Australia. Alan Duffy, Newsweek, "Scientists on Stephen Hawking: Legendary Cosmologist, Intellectual Giant and A-list Celebrity," 14 Mar. 2018 Musk got a degree in physics and economics from Penn and has put them both to good use in business and science. Matthew Glenesk, Indianapolis Star, "IndyStar 2018 NCAA tournament celebrity alumni bracket," 12 Mar. 2018 As physics and open-world gameplay become more advanced, comic characters’ powers are easier to replicate on the screen, and open-world game play has allowed players to explore the actual worlds of these heroes. Michael Thompson, Ars Technica, "Drawn together: The love affair between comics and games," 24 Dec. 2018 Liu approaches the story with the same interest in physics and technology as his other books, and highlights the dangers that power and technology can bring. Andrew Liptak, The Verge, "Our favorite science fiction and fantasy books of 2018," 21 Dec. 2018 Led by Adrian Melott, professor emeritus of physics and astronomy at the University of Kansas, the study proposes that a supernova, or perhaps a whole bunch of them, may be to blame. Jill Kiedaisch, Popular Mechanics, "Exploding Stars Might Have Brought an End to the Prehistoric Megalodon," 14 Dec. 2018 Calahan, a 2014 graduate of Maine South High School, majored in physics and astronomy at the university and is now studying astronomy in the Netherlands. Jennifer Johnson, chicagotribune.com, "Shout Out: Jenny Calahan, Maine South grad, student of astronomy," 3 July 2018

These example sentences are selected automatically from various online news sources to reflect current usage of the word 'physics.' Views expressed in the examples do not represent the opinion of Merriam-Webster or its editors. Send us feedback.

See More

First Known Use of physics

1715, in the meaning defined at sense 1

History and Etymology for physics

Latin physica, plural, natural science, from Greek physika, from neuter plural of physikos of nature, from physis growth, nature, from phyein to bring forth — more at be

Keep scrolling for more

Learn More about physics

Statistics for physics

Last Updated

14 Feb 2019

Look-up Popularity

Time Traveler for physics

The first known use of physics was in 1715

See more words from the same year

Keep scrolling for more

More Definitions for physics

physics

noun

English Language Learners Definition of physics

: a science that deals with matter and energy and the way they act on each other in heat, light, electricity, and sound

physics

noun
phys·​ics | \ ˈfi-ziks \

Kids Definition of physics

: a science that deals with the facts about matter and motion and includes the subjects of mechanics, heat, light, electricity, sound, and the atomic nucleus
phys·​ics | \ ˈfiz-iks \

Medical Definition of physics

: a science that deals with matter and energy and their interactions in the fields of mechanics, acoustics, optics, heat, electricity, magnetism, radiation, atomic structure, and nuclear phenomena

Keep scrolling for more

More from Merriam-Webster on physics

Spanish Central: Translation of physics

Nglish: Translation of physics for Spanish Speakers

Britannica English: Translation of physics for Arabic Speakers

Britannica.com: Encyclopedia article about physics

Comments on physics

What made you want to look up physics? Please tell us where you read or heard it (including the quote, if possible).

WORD OF THE DAY

to deny responsibility for

Get Word of the Day daily email!

Test Your Vocabulary

What did you just call me?! A Quiz

  • rows-of-various-emoji
  • If a member of the audience describes your speech as bombastic, does that person mean it is:
How Strong Is Your Vocabulary?

Test your vocabulary with our 10-question quiz!

TAKE THE QUIZ
SCRABBLE® Sprint

Test Your Knowledge - and learn some interesting things along the way.

TAKE THE QUIZ

Love words? Need even more definitions?

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