Flashcards in Week 5 Spacetime & Twins Paradox Deck (7)

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1

## what is the relative view of space and time

### they are not separate but instead are intertwined to make up a 4D universe (3D and time)

2

## what is the space time interval equation equation

### Δs^2 = Δs'^2 = c^2Δt^2 - Δx^2

3

## if something is invariant what does that mean

### it has the same value in all inertial reference frames

4

## what is the space time interval in terms of spacetime geometry

### it is the distance between events in spacetime

5

## what is the space time interval in 'real world' terms

### time of a clock carried along two paths

6

## since both Δs and c are invariant what else must be invariant and what is it's name

###
Δt' is invariant

known as the proper time

7