What Is Physical Attractiveness?

In physics, attraction is gravity (English: Gravitation, Gravity), also known as gravitational interactions (Gravitational Interactions), which refers to the tendency of objects with mass to accelerate closer, is also one of the four basic interaction forces First, the other three types of interactions are electromagnetic, weak, and strong. Gravity is the weakest force in the above interactions, but it still has an attractive effect on distance. In classical mechanics, universal gravitation is thought to originate from the action of mass forces. In general relativity, universal gravitation comes from the distortion of space and time by the mass of existence, not a force. In quantum gravity, gravitational neutrinos are assumed to be the medium of gravity.

Attractive

(Physical term)

Everything

In nature, any two objects are attracted to each other. The magnitude of gravity is proportional to the product of the masses of the two objects and inversely proportional to the square of the distance between the two objects.

Expressed by formula:

F = G * M1M2 / R * R (G = 6.67 × 10 ^ -11N · m ^ 2 / kg ^ 2) can be read as F equal to G times M1M2 divided by R square quotient

F: gravity between two objects

G:

The discovery of the law of gravity is one of the greatest achievements of natural science in the 17th century. It unifies the laws of the movement of objects on the ground and the laws of celestial bodies, and has a profound impact on the future development of physics and astronomy. It explained for the first time (naturally

The law of gravitation of all things reveals the laws of celestial body motion, and has been widely used in astronomy and space navigation calculations. It provides a set of calculation methods for actual astronomical observations. It can calculate long-period celestial movement orbits with only a few observations. The discoveries of Halley's Comet, Neptune, and Pluto in the history of science are all significant achievements in applying the law of gravity. example of. Using the gravitational formula, Kepler's third law can also calculate the mass of celestial bodies such as the sun and the earth that cannot be directly measured. Newton also explained the tidal phenomenon caused by the gravitation of the moon and sun. He also successfully explained the reasons for the flat shape of the earth's poles and the complex motion of the earth's axis based on the laws of gravity and other laws of mechanics.