What Does force of gravity Mean
Determining the etymological origin of the two words that shape the term that we are going to analyze in depth is the first thing we are going to do. In this sense, it must be said that both emanate from Latin:
• Force, comes from the word “fortia”, which can be translated as “strong”.
• Gravity, is the result of the development of "gravitas". This word was used to indicate "quality of weight" and was made up of two clearly differentiated parts: the adjective "gravis", which is equivalent to "heavy", and the suffix "-dad", which indicates "quality" .
Force is a term with many uses and applications. It can be about the application of moral or physical power; of the vigor and the ability to move something or someone that resists or has weight; of the natural efficacy of things; of the most vigorous state of something; or of the action that can modify the state of movement or rest of a body .
Gravity is a concept that is used in the field of physics and is associated with weight . The British physicist, philosopher, mathematician and inventor Sir Isaac Newton was responsible for developing the theory of gravity .
In 1685 it was, specifically, when the birth of that aforementioned law of universal gravitation was established, which indisputably came to take a step further in a field in which until that moment the "norms" and ideas imposed had been those established by Kepler.
However, long before both figures throughout history there were already other personalities who were investigating and studying in that sense. This would be the case, for example, of Galileo Galilei who, for example, was in charge of incorporating and establishing the concept of inertia.
It can be said that the force of gravity is the physical force exerted by the mass of the planet on objects that are within its gravitational field . In this way, gravity represents the weight of a body.
In order to understand the principles of this force of gravity, we could establish two fundamental maxims regarding it:
• It affects movement, since it can make a body start, stop and even modify its movement.
• It is responsible for stopping objects or bodies that are thrown upwards and accelerates, however, those that move downwards.
It is important to bear in mind that this force can vary according to the planet and its corresponding gravitational field. A person will have different weight on Earth and on Mars since the mass of these planets is different.
On our planet, gravity is the force that the Earth exerts on bodies towards its center and the force of attraction of bodies due to their mass. Newton indicated that all objects that have mass exert a gravitational attraction on any other object with mass, regardless of the distance between them.
The action of the force of gravity explains why all bodies remain on the surface and do not float through the atmosphere, or why, if we throw a ball upwards, it will rise but then begin to descend until it falls to the ground.