# Question: What Does Einstein’S Theory Of Relativity Say About Time?

## What did Einstein mean by time is relative?

A Matter of Time.

In the Special Theory of Relativity, Einstein determined that time is relative–in other words, the rate at which time passes depends on your frame of reference..

## What did Einstein say about space and time?

Essentially, Einstein thought space and time were intertwined in an infinite â€śfabric,â€ť like an outstretched blanket. A massive object such as the Sun bends the spacetime blanket with its gravity, such that light no longer travels in a straight line as it passes by the Sun.

## Is it possible to travel faster than light?

Albert Einstein’s special theory of relativity famously dictates that no known object can travel faster than the speed of light in vacuum, which is 299,792 km/s. … Unlike objects within spaceâ€“time, spaceâ€“time itself can bend, expand or warp at any speed.

## What does E mc2 mean in simple terms?

E = mc2. It’s the world’s most famous equation, but what does it really mean? “Energy equals mass times the speed of light squared.” On the most basic level, the equation says that energy and mass (matter) are interchangeable; they are different forms of the same thing.

## Is time the 4th Dimension?

Time’s dimension is a line going from the past to present to future. Thus, time as the fourth dimension locates an object’s position at a particular moment.

## Is time and space the same?

Thus, space and time are effectively interchangeable, and fundamentally the same thing (or at least two different sides of the same coin), an effect which becomes much more noticeable at relativistic speeds approaching the speed of light.

## What is time in relativity theory?

Einstein’s theory of special relativity says that time slows down or speeds up depending on how fast you move relative to something else. Approaching the speed of light, a person inside a spaceship would age much slower than his twin at home. … Picture a four-dimensional fabric called space-time.

## Can I go back in time?

The Short Answer: Although humans can’t hop into a time machine and go back in time, we do know that clocks on airplanes and satellites travel at a different speed than those on Earth. … However, when we think of the phrase “time travel,” we are usually thinking of traveling faster than 1 second per second.

## What is the formula for Einstein’s theory of relativity?

E = mc2, equation in German-born physicist Albert Einstein’s theory of special relativity that expresses the fact that mass and energy are the same physical entity and can be changed into each other.

## What is E mc2 used for?

The equation â€” E = mc2 â€” means “energy equals mass times the speed of light squared.” It shows that energy (E) and mass (m) are interchangeable; they are different forms of the same thing. If mass is somehow totally converted into energy, it also shows how much energy would reside inside that mass: quite a lot.

## Why is Black Hole Black?

A black hole is a region of spacetime where gravity is so strong that nothingâ€”no particles or even electromagnetic radiation such as lightâ€”can escape from it. … In many ways, a black hole acts like an ideal black body, as it reflects no light.

## What is the theory of relativity in simple words?

What is general relativity? Essentially, it’s a theory of gravity. The basic idea is that instead of being an invisible force that attracts objects to one another, gravity is a curving or warping of space. The more massive an object, the more it warps the space around it.