Physics Final (3f): SPEED & TIME Flashcards
1
Q
Inertial Frame of Reference
A
a reference frame in which a body at rest remains at rest and a body in motion moves at a constant speed in a straight line unless acted on by an outside force, one that is not accelerating
2
Q
Lorentz Factor (𝛾)
A
a value based on the speed of an object compared to that of the speed of light
3
Q
Time Dilation
A
the phenomenon of time passing slower for an observer who is moving relative to another observer
4
Q
Proper Time (t0)
A
the time measured by an observer at rest relative to the event being observed
5
Q
Proper Length (L0)
A
the distance between two points measured by an unmoving observer
6
Q
Length Contraction
A
the shortening of the measured length of a moving observer
