Newton's third law
Americannoun
Example Sentences
Examples are provided to illustrate real-world usage of words in context. Any opinions expressed do not reflect the views of Dictionary.com.
That behavior appears to conflict with Newton's third law, the famous action and reaction principle often summarized as "for every action, there is an equal and opposite reaction."
From Science Daily ● Jun. 16, 2026
For more than 300 years, Newton's third law has been one of the foundations of classical physics.
From Science Daily ● Jun. 16, 2026
The physics of international politics sometimes tidily illustrate Newton’s third law of motion: When two bodies interact, their forces on each other are equal in magnitude and opposite in direction.
From Washington Post ● Mar. 2, 2022
The professor pushes backward with a force Ffoot of 150 N. According to Newton’s third law, the floor exerts a forward reaction force Ffloo of 150 N on System 1.
From Textbooks ● Aug. 12, 2015
Newton’s third law pops into your mind—actions and opposite reactions.
From "Legendary Frybread Drive-In" by Cynthia Leitich Smith
Definitions and idiom definitions from Dictionary.com Unabridged, based on the Random House Unabridged Dictionary, © Random House, Inc. 2023
Idioms from The American Heritage® Idioms Dictionary copyright © 2002, 2001, 1995 by Houghton Mifflin Harcourt Publishing Company. Published by Houghton Mifflin Harcourt Publishing Company.
