Special relativity Flashcards
1
Q
What is a frame of reference?
A
pov from observer can measure physical quantities
2
Q
If observers are moving towards each other?
A
add velocities
3
Q
If observers are moving in the same direction of each other?
A
subtract velocities
4
Q
What are relativistic speeds?
A
greater than 10% of speed of light
5
Q
What were Einstein postulates?
A
1) the laws of physics are the same for two observers moving at constant speed relative to one another
2) the speed of light in a vacuum is the same for all observers
6
Q
what does t’ represent
A
relativistic time as measured by an observer in a different frame of reference to the event
7
Q
What is the lorentz factor equation?
A
\gamma/ = (length contraction equation)
t’= /gamma/t
l’=l/gamma
