Is gravity a force? read somewhere it isn't?

Question

I read something on this site saying gravity is not really a force.(cant find it now) Is that true? What does it mean?

Answer 1

Its considered a force and not a force. It really depends on who you talk to. Its actually just a phenomenon that two bodies of mass attract each other in my honest opinion. But people do always say the "force" of gravity. So its up for debate. After all, its only a theory.

Answer 2

According to general relativity (A Einstein), No. Gravity is an acceleration, a measure of the slope of the gradient in Spacetime as a result of mass.



The theoretical basis for this is: gravity is indistinguishable from an accelerating frame of reference. There is no experiment we can run in a sealed room to determine if we are sitting motionless on earth or moving at constant velocity or accelerating at roughly 9.8 m/s^2 through space ===>. If we cannot tell the difference then there is no difference



Quantum mechanics says, Yes, it is a force transmitted by a theoretical exchange of quanta called "gravitons".

Answer 3

Of course it is a force. Everything has a gravitational pull. However the pull cannot be felt unless the object it huge eg. Planet earth and the moon etc.



Don't e fooled by that stupid site. It's not true. Gravity is most defiantly a force

Answer 4

This depends entirely what kind of physics you're talking about.



In classical Newtonian mechanics (what you study in High School), it most definitely is!



In general relativity (what most physics majors take in graduate school), gravity is not a force and is just an illusion resulting from the "bending" of space-time from massive objects.



Physicists are still at a loss when it comes to reconciling these two theories.

Answer 5

Every planetary body (including the Earth) is surrounded by its own gravitational field, which exerts an attractive force on all objects. Assuming a spherically symmetrical planet, the strength of this field at any given point is proportional to the planetary body's mass and inversely proportional to the square of the distance from the center of the body.



The strength of the gravitational field is numerically equal to the acceleration of objects under its influence, and its value at the Earth's surface, denoted g, is approximately expressed below as the standard average.



g = 9.81 m/s2

Answer 6

It is. Its where mass attracts more mass to it. The mass is the Weight without the gravity.

Gravity X mass= Weight so yes.

Answer 7

F=G*m1*m2/r^2



"Its considered a force and not a force. It really depends on who you talk to."

This is, without a doubt, the stupidest thing I've read in quite some time.