Week 5 Spacetime & Twins Paradox Flashcards
1
Q
what is the relative view of space and time
A
they are not separate but instead are intertwined to make up a 4D universe (3D and time)
2
Q
what is the space time interval equation equation
A
Δs^2 = Δs’^2 = c^2Δt^2 - Δx^2
3
Q
if something is invariant what does that mean
A
it has the same value in all inertial reference frames
4
Q
what is the space time interval in terms of spacetime geometry
A
it is the distance between events in spacetime
5
Q
what is the space time interval in ‘real world’ terms
A
time of a clock carried along two paths
6
Q
since both Δs and c are invariant what else must be invariant and what is it’s name
A
Δt’ is invariant
known as the proper time
7
Q
what does a clock do in relativistic terms
A
measures the distance you travel in spacetime
