Gravitational Fields

Question 1

Define a force field.

Answer 1

A force field is a region where an object will experience a non-contact force.

Question 2

Newton’s law of gravitation:

Answer 2

The gravitational force between any two point objects is attractive, proportional to the product of the masses and inversely proportional to the distance between their centres squared.

Question 3

F =

Answer 3

Gm1m2/r^2

Question 4

g = F/m or g =

Answer 4

GM/r^2