# What are the types of relativity?

## What are the types of relativity?

The theory of relativity is traditionally broken into two parts, special and general relativity. Special relativity provides a framework for translating physical events and laws into forms appropriate for any inertial frame of reference. General relativity addresses the problem of accelerated motion and gravity.

What are the three theories of Einstein?

Einstein is also known for his theory of general relativity (an explanation of gravity), and the photoelectric effect (which explains the behavior of electrons under certain circumstances); his work on the latter earned him a Nobel Prize in Physics in 1921.

### What are the three laws of relativity?

These three laws are: Objects in motion or at rest remain in the same state unless an external force imposes change. In other words, you can calculate how much force it takes to move objects with various masses at different speeds. For every action, there is an equal and opposite reaction.

What is the difference between the two theories of relativity?

The “General Theory of Relativity’ is related to gravity. The difference between the two theories is that the theory of general relativity throws light on the force of gravity with respect to curving four-dimensional space-time. As per Einstein, the accelerative and gravitational forces are equal and same.

## What is Newtonian theory of relativity?

As Huygens had done, Newton presented the relativity principle as a fundamental principle, “Law 3”: The motions of bodies included in a given space are the same among themselves whether that space is at rest or moves uniformly in a straight line without circular motion (1684b, p. 40r.).

What is general theory of relativity?

The general theory of relativity (or general relativity for short) is a major building block of modern physics. It explains gravity based on the way space can ‘curve’, or, to put it more accurately, it associates the force of gravity with the changing geometry of space-time.

### What is Einstein’s general theory of relativity?

Is E mc2 the theory of relativity?

In 1905, Einstein published two articles on the Special Theory of Relativity. Einstein went on to present his findings mathematically: energy (E) equals mass (m) times the speed of light (c) squared (2), or E=mc2.

## What is Albert Einstein’s theory of relativity?

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, according to Wired.

What is the difference between STR and GTR?

The basic postulate of STR is that light travels in vacuum with the same speed c irrespective of frame of reference. This gives rise to many consequences like time not being same for two observers, non simultaneity of events and so on. GTR deals with gravity. Einstein proposed that space-time is curved(non euclidean).

### What’s the main difference between special and general theory of relativity?

General relativity shows the relation of the observer and the acceleration, whereas special relativity shows the relation of the observer and the speed and time. General relativity considers and includes gravity, whereas special relativity does not include gravity, as no forces are acting on it.

What are the two theories of relativity?

The theory of relativity usually encompasses two interrelated theories by Albert Einstein: special relativity and general relativity, proposed and published in 1905 and 1915, respectively. Special relativity applies to all physical phenomena in the absence of gravity.

## What is general relativity?

General relativity is a theory of gravitation developed by Einstein in the years 1907–1915. 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.

What are the tests of special relativity?

Tests of special relativity. Relativity is a falsifiable theory: It makes predictions that can be tested by experiment. In the case of special relativity, these include the principle of relativity, the constancy of the speed of light, and time dilation.

### What is the best book on relativity?

Relativity: The Special and General Theory. Translated by Robert W. Lawson (The masterpiece science ed.). New York: Pi Press. ISBN 978-0-13-186261-6. Einstein, Albert (1920). Relativity: The Special and General Theory (PDF). Henry Holt and Company. Einstein, Albert; trans. Schilpp; Paul Arthur (1979).