Does gravity work instantaneously?
In the simple newtonian model, gravity propagates instantaneously: the force exerted by a massive object points directly toward that object’s present position. Strictly speaking, gravity is not a “force” in general relativity, and a description in terms of speed and direction can be tricky.
Does gravity have a delay?
The attraction toward an object moving with a steady velocity is towards its instantaneous position with no delay, for both gravity and electric charge.
Can time be slowed by gravity?
This form of time dilation is also real, and it’s because in Einstein’s theory of general relativity, gravity can bend spacetime, and therefore time itself. The closer the clock is to the source of gravitation, the slower time passes; the farther away the clock is from gravity, the faster time will pass.
How fast does gravity work?
299,792,458 metres per second
Just as the speed of a massless particle of light in a vacuum is restricted by the Universe’s upper speed limit, the massless distortions of spacetime would also be energy zipping along at top speed. Or, to be more precise, gravity moves at 299,792,458 metres per second, a rate we can just call c.
Does gravity propagate at speed of light?
Creighton explains that in electromagnetism, when you shake an electron, it creates a change in the electric field that spreads out at the speed of light. Gravity works the same way. Shake a mass and the change in the gravitational field — the gravitational wave — propagates at that same speed.
Does gravity pull everything at the same speed?
Gravity does not attract all objects with the same speed but rather with the same acceleration. This means that any two objects in the same gravitational field will change their speeds by the same amount in any given time period.
How does time change with gravity?
Yes, time goes faster the farther away you are from the earth’s surface compared to the time on the surface of the earth. This effect is known as “gravitational time dilation”. The stronger the gravity, the more spacetime curves, and the slower time itself proceeds.
Can gravity increase or decrease the speed of a vehicle?
Gravity affects your speed when you drive uphill and downhill. Gravity will cause you to go faster and increase your stopping distance. You may need to shift to a lower gear or smoothly apply your brakes to slow to a safe speed and control your vehicle.
Is gravity instant or speed of light?
Answer: The short answer is no, the speed of light is unchanged by gravity. In Einstein’s General Theory of Relativity, space and time can be visualized as a four-dimensional construct that gets warped under the influence of gravity.
How does gravity work over long distances?
As you get farther away from a gravitational body such as the sun or the earth (i.e. as your distance r increases), its gravitational effect on you weakens but never goes completely away; at least according to Newton’s law of gravity. Gravitational effects are the result of spacetime curvature.