noun
- A body remains at rest or in motion with a constant velocity unless acted upon by an external force.
- synonyms: Newton's first law of motion, Newton's first law
WordNet 3.0 © 2006 by Princeton University
| APA | WordNet. (2010). first law of motion. Retrieved September 25, 2026, from http://smartdefine.org/first_law_of_motion/definitions/1214487 |
| Chicago | WordNet. 2010. "first law of motion" http://smartdefine.org/first_law_of_motion/definitions/1214487 (accessed September 25, 2026). |
| Harvard | WordNet 2010, first law of motion, Smart Define, viewed 25 September, 2026, <http://smartdefine.org/first_law_of_motion/definitions/1214487>. |
| MLA | WordNet. "first law of motion" 23 October 2010. Web. 25 September 2026. <http://smartdefine.org/first_law_of_motion/definitions/1214487> |