Which best explains a difference between Einstein's general theory of relativity and his special theory of relativity?
His general theory includes uniform and accelerated motion, but his special theory applies only to uniform motion.
His general theory includes uniform and accelerated motion, but his special theory applies only to accelerated motion
His general theory applies only to accelerated motion, but his special theory includes uniform and accelerated motion
His general theory applies only to uniform motion, but his special theory includes uniform and accelerated motion.

His general theory includes uniform and accelerated motion, but his special theory applies only to uniform motion.

Explanation:

Albert Einstein, in his theory of special relativity, determined that the laws of physics are the same for all non-accelerating observers, and he showed that the speed of light within a vacuum is the same no matter the speed at which an observer travels.

Special relativity is based on two postulates which are contradictory in classical mechanics :

1. The laws of physics are the same for all observers in any inertial frame of reference relative to one another this is known as the principle of relativity.

2. The speed of light in a vacuum is the same for all observers, regardless of their relative motion or of the motion of the

light source.

The theory of special relativity explains how space and time are linked for objects that are moving at a consistent speed in a straight line. One of its most famous aspects concerns objects moving at the speed of light.

The development of general relativity began with the equivalence principle , under which the states of accelerated motion and being at rest in a gravitational field (for example, when standing on the surface of the Earth) are physically identical.

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