/ Thesaurus / N Synonyms of newton's second law of motion Find synonyms for: Noun1. second law of motion, Newton's second law of motion, Newton's second law, Newton's law of motion, Newton's law, law of motionusage: the rate of change of momentum is proportional to the imposed force and goes in the direction of the forceWordNet 3.0 Copyright © 2006 by Princeton University. All rights reserved. Related Content Daily Word Quiz: blithesome Analogy of the Day: Today’s Analogy Spelling Bee: Today’s Spelling Bee Frequently Misspelled Words Frequently Mispronounced Words Easily Confused Words Writing & Language