* Differences between Small (g) and Capital (G) *

Universal gravitation constant (G):-

1. 1.It is define as the force of attraction acting between two bodies each of unit mass, whose centers are placed unit distance apart.

2. 2.Its value is same throughout the universe.

3. 3.It is a scalar quantity.

4. 4.Dimensional formula for G is [M^{-1}L^{3}T^{-2}].

Acceleration due to gravity (g):-

1.It is defined as the constant acceleration produced in a body when it falls freely under the effect of gravity

2.Its value changes from place to place.

3.It is a vector quantity.

4.Dimensional formula for g is [M^{0}L^{1}T^{-2}].