A gravitational field g at an object's location exerts a force whose magnitude is:

1. A field describes the force per unit mass at a point in space. 2. Multiplying that by the mass present gives the force. 3. A gravitational field g at the location of an object with mass m causes a gravitational force of magnitude mg to be exerted on the object. 4. That force acts in the direction of the field, which is downward near Earth. _Source: OpenStax College Physics for AP(R) Courses 2e (CC BY 4.0), Ch 4 'Dynamics: Force and Newton's Laws of Motion', sections 4.1-4.8_