All Questions
10
questions
13
votes
3
answers
2k
views
In general relativity, why is Earth able to accelerate?
I was told and convinced that gravity is not a force, and in free fall you're an inertial frame and experience no force, and when on the surface of Earth you would be accelerating upwards.
What I ...
- 320
1
vote
2
answers
944
views
Does an accelerated rocket curve spacetime?
I am not a physicist, I am an observer, a student of the theory of relativity. I have a doubt about the principle of equivalence. I know that there are two different acceleration phenomena, one is ...
- 29
1
vote
1
answer
124
views
How does the spacetime curvature cause an object to attract towards the ground? [duplicate]
An object moves at a constant speed relative to the local spacetime but due to the warped spacetime it appears as if accelerating. How does spacetime curvature exactly causes this effect?
3
votes
1
answer
202
views
What is the sum of forces equation in curved spacetime?
I've been thinking about the Sum of Forces equation and the fact that gravity isn't really a force. So what is the proper way to think about this equation when dealing with objects in a gravitational ...
- 584
3
votes
6
answers
1k
views
Why is curved space able to change an object's velocity (vector)?
I don't really understand what is meant by curved space. Why does mass warp space? Why does curved space alter the velocity of a massive object? Normally to change an object's direction you have to ...
- 55
6
votes
3
answers
1k
views
If gravity is simply a curvature of space, why does it accelerate objects? [duplicate]
I understand how an object moving through space would be affected if gravity were a curvature of space as opposed to being a force. However, I do not understand why this creates a "pull" on ...
- 195
1
vote
1
answer
142
views
Spacetime curvature is relative?
I have the following conceptual doubt.
These are my assumptions:
1) The geometry of spacetime is the same for all observers, regardless their motion
2) All motion is relative (both uniform and not ...
- 719
0
votes
1
answer
181
views
Spacetime curvature replaces acceleration?
In my understanding, not only mass but any kind of energy/ force bends spacetime. So is it correct to say that every object in the world moves along geodesic? If the object is submit to a force, it ...
- 719
1
vote
3
answers
2k
views
Why does gravity warp space time but not acceleration?
In general relativity, the presence of gravity warps space-time yet clearly me accelerating will not warp space-time. It is hints at in one of the comments of this answer that acceleration bends world ...
6
votes
5
answers
6k
views
Does acceleration warp space?
I know that mass warps spacetime and gravity and acceleration are equivalent so does acceleration warp spacetime too?
- 203