A non-rotating perfect sphere of uniform mass density, or whose density varies solely with distance from the centre (spherical symmetry), would produce a gravitational field of uniform magnitude at all points on its See more

Gravity acceleration is a vector quantity, with direction in addition to magnitude. In a spherically symmetric Earth, gravity would point directly … See more

Tools exist for calculating the strength of gravity at various cities around the world. The effect of latitude can be clearly seen with gravity in high-latitude cities: Anchorage (9.826 … See more

If the terrain is at sea level, we can estimate, for the Geodetic Reference System 1980, $${\displaystyle g\{\phi \}}$$, the acceleration at latitude $${\displaystyle \phi }$$:
This is the See more

From the law of universal gravitation, the force on a body acted upon by Earth's gravitational force is given by
$${\displaystyle F=G{\frac {m_{1}m_{2}}{r^{2}}}=\left(G{\frac {M_{\oplus }}{r^{2}}}\right)m}$$
where r is the … See more

The measurement of Earth's gravity is called gravimetry.
Satellite measurements See more

• Earth sciences portal
• Escape velocity – Concept in celestial mechanics
• Figure of the Earth – Size and shape used to model the Earth for geodesy See more