What is theory of relativity for Kids physics?

1. The principle of relativity: The laws of physics are the same for any inertial reference frame. 2. The principle of the speed of light: The speed of light in a vacuum is the same for all observers, regardless of their relative motion or the motion of the source of the light.

What was Einstein’s general theory of relativity?

Einstein’s 1915 general theory of relativity holds that what we perceive as the force of gravity arises from the curvature of space and time. The scientist proposed that objects such as the sun and the Earth change this geometry.

How is theory of relativity applicable in our daily life?

The theory explains the behavior of objects in space and time, and it can be used to predict everything from the existence of black holes, to light bending due to gravity, to the behavior of the planet Mercury in its orbit. Any object in a big gravity field is accelerating, so it will also experience time dilation.

What is theory of relativity in simple words Quora?

Your speed is just a relative quantity, which you must reference to something else. The principle of relativity implies that the laws of physics are the same throughout space (and time). Putting that in real world terms, you can feel like you are motionless when.

Is E mc2 the theory of relativity?

The most famous equation in the world, E=mc2, arrived rather quietly. 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 does E mc2 mean for kids?

“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. Under the right conditions, energy can become mass, and vice versa.

What is geodesic and why is it important in general relativity?

In general relativity, a geodesic generalizes the notion of a “straight line” to curved spacetime. Importantly, the world line of a particle free from all external, non-gravitational forces is a particular type of geodesic. In other words, a freely moving or falling particle always moves along a geodesic.

Why do we need special theory of relativity?

Special relativity applies to “special” cases — it’s mostly used when discussing huge energies, ultra-fast speeds and astronomical distances, all without the complications of gravity. As an object approaches the speed of light, the object’s mass becomes infinite and so does the energy required to move it.

What is the theory of relativity for kids?

Science >> Physics for Kids. The theory of relativity is a very complex and difficult subject to understand. We will just discuss the very basics of the theory here. The theory of relativity is actually two theories that Albert Einstein came up with in the early 1900s.

Is the theory of relativity difficult to understand?

The theory of relativity is a very complex and difficult subject to understand. We will just discuss the very basics of the theory here. The theory of relativity is actually two theories that Albert Einstein came up with in the early 1900s.

How does general relativity relate to the laws of motion?

General theory of relativity is basically theory of gravitation and how Einstein viewed the force of gravitation. It also contradicted with the classical laws of motion, but since gravitation force is very weak on Earth, the laws of motion are seen to co-relate with this general relativity.

What are the two types of relativity?

One is called “special” relativity and the other is called “general” relativity. We will talk mostly about special relativity here. You can learn more about two very important aspects of the theory of relativity on this page about the speed of light and time dilation .