Newton's first law

proper noun

The observation that objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an outside force acts upon them.

Similar
first law of motionNewton's first law of motion
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Meanings

proper noun
  1. engineeringThe observation that objects in motion tend to stay in motion, and objects at rest tend to stay at rest unless an outside force acts upon them.

Synonyms & antonyms

nouna body remains at rest or in motion with a constant velocity unless acted upon by an external force

Similar
first law of motionNewton's first law of motion
Broader
Newton's law of motionNewton's lawlaw of motion

Synonym sets from Open English WordNet, CC BY 4.0.

Translations

Catalan primera llei del moviment de Newton, llei d'inèrcia
  • primera llei del moviment de Newtonobservation
  • llei d'inèrciaobservation
Chinese Mandarin Newton第一定律, 牛頓第一定律 /牛顿第一定律
  • Newton第一定律 (Newton dì-yī dìnglǜ)observation
  • 牛頓第一定律 /牛顿第一定律 (Niúdùn dì-yī dìnglǜ)observation
Finnish Newtonin ensimmäinen laki
  • Newtonin ensimmäinen lakiobservation
French première loi de Newton, principe d'inertie
  • première loi de Newtonobservation
  • principe d'inertieobservation
German erstes Newtonsches Gesetz, Trägheitsprinzip
  • erstes Newtonsches Gesetzobservation
  • Trägheitsprinzipobservation
  • Trägheitsgesetzobservation
  • Inertialgesetzobservation
Indonesian hukum Newton pertama
  • hukum Newton pertamaobservation
Italian primo principio di Newton, principio d'inerzia
  • primo principio di Newtonobservation
  • principio d'inerziaobservation
Japanese ニュートンの第1法則
  • ニュートンの第1法則 (Nyūton no dai-ichi hōsoku)observation
Korean 뉴턴의 제1법칙
  • 뉴턴의 제1법칙 (Nyuteon-ui jeilbeopchik)observation
Norwegian Bokmål Newtons første lov
  • Newtons første lovobservation
Polish pierwsza zasada dynamiki Newtona
  • pierwsza zasada dynamiki Newtonaobservation
Portuguese primeira lei de Newton, princípio da inércia
  • primeira lei de Newtonobservation
  • princípio da inérciaobservation
Russian пе́рвый зако́н Ньютона
  • пе́рвый зако́н Ньютона (pérvyj zakón Nʹjutona)observation
Spanish primera ley del movimiento de Newton, ley de inercia
  • primera ley del movimiento de Newtonobservation
  • ley de inerciaobservation
Cite this entry
APA

Newton's first law. (n.d.). In WatkinsX Dictionary. Retrieved November 5, 2026, from https://dictionary.watkinsx.com/word/Newton's%20first%20law

MLA

“Newton's first law.” WatkinsX Dictionary, https://dictionary.watkinsx.com/word/Newton's%20first%20law. Accessed November 5, 2026.

Chicago

WatkinsX Dictionary, s.v. “Newton's first law,” accessed November 5, 2026, https://dictionary.watkinsx.com/word/Newton's%20first%20law.

Source: Newton's first law on Wiktionary, CC BY-SA 4.0.