Documentary research of Gravity | Study Guides, Projects, Research Particle Physics

GRAVITY

Gravity or the force of gravity is a phenomenon of nature by which bodies that

possess mass attract each other reciprocally, with greater intensity the more

massive those bodies are.It is one of the four fundamental interactions of matter,

and is also known as "gravitation" or "gravitational interaction".

This pull is what planet Earth exerts on all objects on it, and it causes things to

fall.But it can also be observed among space stars, such as planets orbiting the

Sun (attracted by its gravity) or meteorites that are attracted by the mass of our

plane and end up disintegrating in the atmosphere.

The general law of physics that governs gravitational action is (in classical

mechanics) the Law of Universal Gravitation, formulated by Isaac Newton in

1687.In it, the English scientist explains that the same gravity that makes things

fall to the ground is what keeps the planets in their orbit with respect to the Sun.

Much later, in the twentieth century, the physicist Albert Einstein postulated his

Theory of General Relativity, in which he reformulated certain aspects of

gravitation and inaugurated a new perspective on the phenomenon: the relativistic

one, according to which gravity would not only affect space, but also time.

Unlike the other fundamental interactions in the Universe, gravity seems to be the

predominant force over long distances (the other three occur at much more

immediate distances), responsible for the movement of celestial bodies and many

interactions of stellar matter.

How is gravity measured?

The force of gravity is measured in relation to the acceleration it imprints on the

objects on which it acts, provided that no other forces intervene.This acceleration

has been calculated, at the Earth's surface, at about 9.80665 m/s2.

On the other hand, gravitational force can be measured through different formulas,

depending on the specific physical approach (classical or relativistic mechanics),

and is usually represented, like other forces, in kilograms of force or in Newtons

(N).

Gravity measurement units

As we said earlier, gravity is usually measured in Newtons (N) when we refer to the

gravitational force, and in m/s2 when talking about the acceleration caused by the

attraction of a massive body on another with less mass.An example is the

acceleration caused by the Earth on an object that is dropped.



Gravity is measured with two different magnitudes depending on what you want to

study:

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GRAVITY

Gravity or the force of gravity is a phenomenon of nature by which bodies that possess mass attract each other reciprocally, with greater intensity the more massive those bodies are. It is one of the four fundamental interactions of matter, and is also known as "gravitation" or "gravitational interaction". This pull is what planet Earth exerts on all objects on it, and it causes things to fall. But it can also be observed among space stars, such as planets orbiting the Sun (attracted by its gravity) or meteorites that are attracted by the mass of our plane and end up disintegrating in the atmosphere. The general law of physics that governs gravitational action is (in classical mechanics) the Law of Universal Gravitation, formulated by Isaac Newton in

In it, the English scientist explains that the same gravity that makes things fall to the ground is what keeps the planets in their orbit with respect to the Sun. Much later, in the twentieth century, the physicist Albert Einstein postulated his Theory of General Relativity, in which he reformulated certain aspects of gravitation and inaugurated a new perspective on the phenomenon: the relativistic one, according to which gravity would not only affect space, but also time. Unlike the other fundamental interactions in the Universe, gravity seems to be the predominant force over long distances (the other three occur at much more immediate distances), responsible for the movement of celestial bodies and many interactions of stellar matter. How is gravity measured? The force of gravity is measured in relation to the acceleration it imprints on the objects on which it acts, provided that no other forces intervene. This acceleration has been calculated, at the Earth's surface, at about 9.80665 m/s2. On the other hand, gravitational force can be measured through different formulas, depending on the specific physical approach (classical or relativistic mechanics), and is usually represented, like other forces, in kilograms of force or in Newtons (N). Gravity measurement units As we said earlier, gravity is usually measured in Newtons (N) when we refer to the gravitational force, and in m/s2 when talking about the acceleration caused by the attraction of a massive body on another with less mass. An example is the acceleration caused by the Earth on an object that is dropped. Gravity is measured with two different magnitudes depending on what you want to study:

Strength. When measured as force, Newtons (N), a unit of the International System (SI) that pays homage to Isaac Newton, are used. The gravitational force is the force that a body feels when it is attracted to another. Acceleration. In these cases, the acceleration that a body obtains when attracted to another is measured. As it is an acceleration, the m/s2 unit is used. It is important to note that given two bodies, the gravitational force felt by each is the same by the principle of action and reaction. What differs is the acceleration because the masses are different. For example, the force that the Earth makes to our body is equal to the force that our body makes to the Earth. But since the mass of the Earth is much greater than that of our body, the planet does not accelerate at all, it does not move. Gravity is simply defined as what goes up must come down. Gravity is the natural force exerted between two objects, which attracts them towards each other. Therefore, instead of an object such as an apple thrown into the air that remains there or floating, it falls. Weight is extremely important for gravity. Gravity always exerts a force equal to the weight of the object on which it is acting. A cup stays on a table because the upward force of the table is equal to the weight of the cup, causing it to stay in place. Gravity Formula Gravitational force can be calculated through different formulas, which vary according to the specific physical approach with which it is approached: classical mechanics, relativistic mechanics or quantum mechanics. Each one takes different elements into consideration and deals with a specific perspective. This, among other professions, a physicist-mathematician discovered that a certain force is needed to be able to change the speed and trajectory of any object. Thus, he ended up stating that every object needed the force of gravity so that they could fall from somewhere. With his discovery he was able to verify that what keeps all men and animals on Earth is precisely that force found while the planet rotates. This force, then, exists in all objects and bodies in the same way. By creating the Law of Universal Gravitation, it was possible to prove, by means of a formula created by Newton, that the gravitational force is equal to the product of two masses and not proportional to the square of the distance between their centers. Examples of the force of gravity

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GRAVITY