Week 2 Time Dilation, Einstein's Postulates & Length Contraction Flashcards Preview

Y1S1 Quantum Physics and Relativity > Week 2 Time Dilation, Einstein's Postulates & Length Contraction > Flashcards

Flashcards in Week 2 Time Dilation, Einstein's Postulates & Length Contraction Deck (6)
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1

what are Einstein's two postulates

speed of light is constant for all observers/inertial frames of reference
Identical isolated experiments in different inertial frames deliver identical results

2

what are the 3 consequences of Einstein's speed of light postulate

A measures light to approach B at speed c+v
A measures that light travels at c
B measures that light travels at c

3

what consequence of Einstein's postulates is proven via a light clock experiment

time ticks at different rates for different observers

4

what is normally defined as gamma and is very commonly >1

gamma = 1 / sqrt( 1 - v^2/c^2 )

5

define time dilation

moving clocks (objects) run slower

6

what is the general length contraction formula

L = L0 / gamma