physical law

Universe's governing equation

A physical law is a statement describing a consistent relationship in nature, typically expressed mathematically: Newton's laws of motion, the law of gravity, the laws of thermodynamics.

Physical laws describe how the universe behaves rather than prescribe it—they're generalizations from observation, not commands nature must follow.

The physical laws governing planetary motion.

fundamental

gravity

Mutual mass attraction

Ohm's law · Boyle's law · inverse square law · Stefan-Boltzmann law · ideal gas law · Avogadro's law · Ampère's law · Bernoulli's principle

properties

universality

Applying to all cases

causality · reversibility · irreversibility · quantization · equivalence · proportionality · equilibrium · action-reaction · superposition · locality

constants

Planck's constant

Quantum action unit

phenomenon

entropy

Quantified chaos in systems

radioactivity · refraction · diffraction · interference · induction · buoyancy · friction · inertia · centripetal force · precession

predictability

determinism

Doctrine of causal necessity

testability · falsifiability · reproducibility · measurement · verification · calculation · prediction · modeling · simulation · extrapolation

Opposites
order vs. disorder

physical lawchaos

Complete disorder and confusion

disorder · anarchy · randomness · entropy · lawlessness

necessity vs. contingency

physical lawcontingency

Uncertain possible event

accident · exception · anomaly · violation · deviation

natural vs. supernatural

physical lawmiracle

Supernatural occurrence beyond explanation

divine intervention · magic · act of God · sorcery · paranormal phenomenon

Family

physical, physically, physicality, physician, physic, physics, physique, laws, lawful

Familiarity
Top 200,000
Profile
Known to kids · Used worldwide · Timeless · Abstract · Rated G