## Thursday, November 9, 2017

# What Does G Stand For In Physics

### What Does G Stand For

**G**in physics stands for

**the gravitational constant.**The term was originally presented in Newton's idea of how gravity works universally. Gravitational Constant is also known as

**Newton's Constant**or

**universal gravitational constant**. Either way, you want to say it is a

**physical constant**involved in the calculation of

**gravitational effects**.

**G**was measured by

**Cavendish**to have the value of

**6.673*10^(-11)**

**Newtons of meters^2/kilogram^2**. Which is not only used in Newton’s law of gravitation but and also in Einstein 's theory of relativity as well.

**G is also used in the formula F = G*M*m/r^2.**

Both

**m**and

**M**are masses of two bodies interacting gravitationally.

**r**is the separation of their centers of mass.

**F**is the force of gravitational attraction between them.

G can also represent local or global

**gravitational field**. Which represents the force of gravity per unit mass acting on an object.

**Gravitational field = 10 N/kg (Near Earth) either local or globally average**

G may also represent

**free-fall acceleration**or acceleration of gravity.

**Free-Fall Accleration = 10 m/s2 (On Earth )**

G refers to the metric prefix

**Giga**as well. Such as in

**GHz**for

**GigaHertz**. Where Giga represents one billion.

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