gravitational field

Representation of the gravitational field of Earth and Moon combined (not to scale). Vector field (blue) and its associated scalar potential field (red). Point P between earth and moon is the point of equilibrium.

In physics, a gravitational field or gravitational acceleration field is a vector field used to explain the influences that a body extends into the space around itself. A gravitational field is used to explain gravitational phenomena, such as the gravitational force field exerted on another massive body. It has dimension of acceleration (L/T) and it is measured in units of newtons per kilogram (N/kg) or, equivalently, in meters per second squared (m/s).