Studied by 6 people
Inertial Reference Frame
A reference frame where Newton’s First Law is valid, can move at aconstant velocity
Relativity Principle
The basic laws of physics are the same in all inertial reference frames
Absolute
Describes measurements that do not change from one reference frame to the next, includesspace and time
Ether
he assumed medium light travels through in space, the velocity of light given by Maxwell’s Equations was assumed to be respect to this ether
Null Result
The failure to detect a difference in the speed of light when it travels in different directions relative to the ether
First Postulate
The laws of physics have the same form in all inertial frames
Second Postulate
Light propogates through empty space with a definite speed, c, independent of the speed of the source or observer
Thought Experiments
Simple experimental situations which can be thought about and used tosee the consequences of relativity theory
Event
Something that happens at a particular place at a particular time
Time Dilation
Clocks moving relative to an observer are measured to run more slowly, as compared to clocks at rest
Length Contraction
The length of an object relative to an observer is measure to be shorter alongits direction of motion than when it is at rest
Four-Dimensional Space-Time
The idea that space takes up three dimensions and time is the fourth dimension
Space-time interval
The quantity of four-dimensional space-time between two events
Relativistic Mass
The mass of an object with reference to its velocity
Correspondence Principle
The insistence that a more general theory can give the same results asa more restricted one
Note 
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