What is Gravity? Gravitational force is the force that large bodies, such as planets, exert on smaller objects. Gravitational force attracts objects thrown toward the Earth and also keeps the Moon in its orbit. The term Gravitational force is used to describe this force, which has a number of implications for air and space travel. Sir Isaac Newton developed the Universal Law of Gravity, with which he created an equation that can be used to find out about the gravitational force of celestial bodies.
Gravitational Force Definition
Gravity is one of the basic forces that everyone is used to; For most of us, gravity is an almost unnoticed part of everyday life. Our earth’s gravitational force causes an object to return or be thrown and fall to the ground. In addition, many of Earth’s man-made and natural satellites are held in orbit by gravity. Sir Isaac Newton is credited with discovering a method of calculating gravity based on a number of factors including the size and mass of a celestial body.
2. Law of Universal Gravitation
The law of universal gravitation is used to determine the energy of the gravitational force exerted by a planet or a star. The equation takes into account the masses of the two objects under study, the distance between them, the gravitational force, and the universal gravitational constant. This equation was used by Newton to postulate that an object moves around the Earth at the proper speed to constantly orbit the planet. The Global Positioning System (GPS) and other man-made satellites rely on Newton’s discovery in their design.
3. Solar System
The solar system exists because of the gravitational pull of a star. Dust, dirt, and other objects in space are pulled into orbit around the star and form planets through collisions. Earth was formed about 4.5 billion years ago by the gravitational pull of the star at the center of the solar system, the Sun. The Sun supports all the planets that orbit it by the same principles that cause the Moon to orbit the Earth.
Space missions rely on knowledge of gravity to successfully launch things like Voyager 1 and Voyager 2. Telescopes, satellites, space stations, missions, and all other extraterrestrial activities take into account the gravity exerted by Earth and other planets when planning missions. This is because the gravity of a planet could throw a spacecraft off course. In addition, Earth’s gravity is the most critical factor in the design and construction of the craft.
Newton’s law of universal gravitation played a central role in the development and understanding of Einstein’s theory of relativity. According to Professor Bangalore Sathyaprakash of the School of Physics and Astronomy at Cardiff University, the theory of relativity had to be modified due to conflicts between the statements of the law of universal gravitation and the way Einstein had established the theory of relativity. The idea of general relativity came about as a result of these conflicting ideas.