Galilean transformations

E166671

Galilean transformations are the classical coordinate transformations that relate the space and time measurements between inertial reference frames moving at constant relative velocities in Newtonian mechanics.

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Label Occurrences
Galilean transformations canonical 2

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Statements (48)

Predicate Object
instanceOf classical spacetime transformation
concept in Newtonian mechanics
coordinate transformation
appliesTo point particle trajectories in Newtonian spacetime
assumes absolute time
inertial frames move at constant relative velocity
infinite speed of signal propagation limit
low relative velocities compared to speed of light
same time coordinate for all inertial observers
universal simultaneity
contrastsWith Lorentz transformation
surface form: Lorentz transformations
coordinateRelation t' = t
x' = x − vt for motion along x-axis
y' = y
z' = z
doesNotPreserve spacetime interval of special relativity
domain three-dimensional Euclidean space plus absolute time
expresses principle of relativity in Newtonian mechanics
failsWhen relative velocities approach speed of light
groupProperty forms a group under composition
group is called the Galilean group
hasSymmetry boosts (changes of inertial frame at constant velocity)
spatial rotations
spatial translations
temporal translations
historicalContext precede development of special relativity
implies classical velocity addition law
invariance of Newton’s laws in inertial frames
invariance of acceleration between inertial frames
no length contraction
no time dilation
mathematicalStructure affine transformation on space and time coordinates
namedAfter Galileo Galilei
preserves form of classical equations of motion in inertial frames
spatial distances at a fixed time
relatedConcept Galilean invariance
Galilean relativity
relatedTo principle of inertia
relates inertial reference frames
usedIn law of universal gravitation
surface form: Newtonian gravity

Newtonian mechanics
classical continuum mechanics
classical fluid dynamics
classical mechanics
usedToDerive classical kinetic energy expressions
form of Newton’s second law in different inertial frames
validIn non-relativistic limit
velocityAdditionLaw u' = u − v for collinear velocities

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Referenced by (2)

Full triples — surface form annotated when it differs from this entity's canonical label.

Galilean relativity uses Galilean transformations
special relativity replaces Galilean transformations