Learn All About Earth's Gravity - Physics Forums
Jan 2, 2016 · Earth's gravitational field at the surface is approximately 9.8 Newtons/kilogram, or equivalently, 9.8 meters/second/second.
If gravity is not a force, what makes massive objects spheroid?
May 7, 2024 · Gravity is absolutely a "force" for all intents and purposes relevant to the question, and the inverse square law works perfectly fine to explain why gravity causes extremely massive objects to …
Gravitation is not force? - Physics Stack Exchange
Websters specifically defines force as the gravitational interaction (definition 4b). We all were taught in high school that gravity was a force. Given the lack of consensus among the authorities, a more …
Why 9.8m/s^2? The Mystery of Gravity's Constant Acceleration Explained
Apr 7, 2004 · The gravity acceleration anywhere in the universe is: g' = G\frac {M} {r^2} Where G is the gravitational constant, M is the mass of the object that is pulling you and r is your distance from its …
Is gravity as a "force" an "illusion"? - Physics Stack Exchange
Jan 16, 2025 · 11 The reason we say gravity is not a force, but rather the effect of a spacetime distortion is that, once you see the spacetime as deformed, then the objects move in "straight lines" in that …
Why does gravity have a stronger effect on objects with more mass?
May 16, 2021 · Gravity is an extensive property; at any given distance-to-center, the Earth's gravity is roughly 81 times that of the moon, because the Earth is that much greater (in the gravity-field …
dimensional analysis - Comparing the strength of gravity and ...
Sep 29, 2020 · I often see and hear people claiming that "the gravitational force is much weaker than the electromagnetic force". Usually, they justify it by comparing the universal gravity constant to …
What is the gravity in the center of Earth? - Physics Stack Exchange
Aug 26, 2023 · So the gravitational force at the exact center of the earth is zero. And outside of the center it is still very small (compared to $\textbf {g}=9.8\text { m/s}^2$ at the surface of the earth) and …
Is Gravity Really a Force? A Look at General Relativity's Perspective
May 14, 2020 · Classically (meaning non-quantum and non-GR) gravity is described by Newton's law of Universal Gravitation, in which gravity is certainly a force. However, General Relativity supersedes …
Why do we still need to think of gravity as a force?
The only differences between gravity and the other three forces are an additional "pretty" interpretation of the gravitational force field and some technicalities such as the higher spin of the messenger …