Newton's second law of motion
E27433
Newton's second law of motion is a fundamental principle stating that the net force acting on an object equals the rate of change of its momentum, commonly expressed as F = ma for constant mass.
All labels observed (2)
| Label | Occurrences |
|---|---|
| Newton's second law of motion canonical | 4 |
| Newton’s second law of motion | 2 |
How this entity was disambiguated
This entity first appeared as the object of triple T209606 — resolving that mention is where its identity was fixed. The disambiguator weighed these candidate entities and picked the highlighted one (or “None”, minting a new entity). This is how homonymy is resolved: the same surface form can point to different entities.
NED1
Entity disambiguation (via context triple)
gpt-5-mini-2025-08-07
Target entity: Newton's second law of motion Context triple: [Newtonian mechanics, includes, Newton's second law of motion]
-
A.
Newton's first law of motion
Newton's first law of motion states that an object remains at rest or in uniform straight-line motion unless acted upon by a net external force, expressing the principle of inertia.
-
B.
law of universal gravitation
The law of universal gravitation is Newton’s fundamental physical law stating that every pair of masses in the universe attracts each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.
-
C.
Newtonian mechanics
Newtonian mechanics is the classical theory of motion and forces that explains how macroscopic objects move under the influence of forces, forming the foundation of classical physics.
-
D.
Snell’s law of refraction
Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
-
E.
Aristotelian physics
Aristotelian physics is the pre-modern natural philosophy based on Aristotle’s ideas about motion and the elements, which dominated Western thought until it was displaced by the new mechanics of the Scientific Revolution.
- F. None of above. chosen
- G. Unsure - the case is ambiguous/there is not enough information to decide.
NED2
Entity disambiguation (via description)
gpt-5-mini-2025-08-07
Target entity: Newton's second law of motion Target entity description: Newton's second law of motion is a fundamental principle stating that the net force acting on an object equals the rate of change of its momentum, commonly expressed as F = ma for constant mass.
-
A.
Newton's first law of motion
Newton's first law of motion states that an object remains at rest or in uniform straight-line motion unless acted upon by a net external force, expressing the principle of inertia.
-
B.
law of universal gravitation
The law of universal gravitation is Newton’s fundamental physical law stating that every pair of masses in the universe attracts each other with a force proportional to the product of their masses and inversely proportional to the square of the distance between them.
-
C.
Newtonian mechanics
Newtonian mechanics is the classical theory of motion and forces that explains how macroscopic objects move under the influence of forces, forming the foundation of classical physics.
-
D.
Snell’s law of refraction
Snell’s law of refraction is a fundamental principle in optics that relates the angles of incidence and refraction to the refractive indices of two media, governing how light bends when passing between them.
-
E.
Aristotelian physics
Aristotelian physics is the pre-modern natural philosophy based on Aristotle’s ideas about motion and the elements, which dominated Western thought until it was displaced by the new mechanics of the Scientific Revolution.
- F. None of above. chosen
Statements (47)
| Predicate | Object |
|---|---|
| instanceOf |
classical mechanics law
ⓘ
physical law ⓘ |
| appliesTo |
point particles
ⓘ
rigid bodies ⓘ systems of particles ⓘ |
| appliesUnderCondition | constant mass ⓘ |
| assumes | inertial reference frame ⓘ |
| category | laws of motion ⓘ |
| contrastsWith | impulse-momentum formulation as integral form ⓘ |
| defines | relationship between force and acceleration ⓘ |
| describedIn | Philosophiæ Naturalis Principia Mathematica ⓘ |
| domain | macroscopic scales ⓘ |
| expressedIn | SI units ⓘ |
| formulatedBy | Isaac Newton ⓘ |
| generalizedBy |
F = d(γmv)/dt in special relativity
ⓘ
relativistic mechanics ⓘ |
| hasAlternativeStatement | change of motion is proportional to the impressed motive force and takes place along the straight line in which that force is impressed ⓘ |
| hasConsequence |
heavier objects require more force for same acceleration
ⓘ
motion changes only under nonzero net force ⓘ |
| hasDimensionForForce | M L T^-2 ⓘ |
| hasMathematicalForm |
F = dp/dt
ⓘ
F = ma ⓘ |
| hasOrder | second ⓘ |
| hasScalarForm | ΣF = ma along a given axis ⓘ |
| hasUnitForForce | newton ⓘ |
| hasVectorForm | ΣF⃗ = m a⃗ ⓘ |
| implies |
acceleration is inversely proportional to mass
ⓘ
acceleration is proportional to net force ⓘ zero net force gives zero acceleration ⓘ |
| introducedInCentury | 17th century ⓘ |
| isBasisFor |
Newtonian dynamics
ⓘ
linked to:
Newtonian mechanics
equations of motion ⓘ |
| partOf | Newton's laws of motion ⓘ |
| relatedTo |
Newton's first law of motion
ⓘ
Newton's third law of motion ⓘ |
| relatesQuantity |
acceleration
ⓘ
mass ⓘ momentum ⓘ net force ⓘ |
| statesThat | net force on a body equals the time rate of change of its momentum ⓘ |
| usedIn |
classical mechanics
ⓘ
linked to:
Newtonian mechanics
dynamics ⓘ engineering ⓘ orbital mechanics ⓘ structural analysis ⓘ vehicle motion analysis ⓘ |
| validWhen | speeds much less than speed of light ⓘ |
How these facts were elicited
The pipeline generated the facts above by prompting gpt-5.1 with this entity's name + description and the instruction below.
Instruction
You are a knowledge base construction expert. Given a subject entity and a description of it, return factual statements that you know for the subject as a JSON list of dictionaries(triples), where keys must be "subject", "predicate" and "object". The number of facts may be very high, between 25 to 50 or more, for very popular subjects. For less popular subjects, the number of facts can be very low, like 5 or 10. # Requirements - If you don't know the subject at all, return an empty list. - If the subject is not a named entity, return an empty list. - Include at least one triple where predicate is "instanceOf". - Do not get too wordy. - Separate several objects into multiple triples with one object.
Input
Subject: Newton's second law of motion Description of subject: Newton's second law of motion is a fundamental principle stating that the net force acting on an object equals the rate of change of its momentum, commonly expressed as F = ma for constant mass.
Referenced by (6)
Full triples — surface form annotated when it differs from this entity's canonical label.
linked to: Newton's second law of motion
linked to: Newton's second law of motion