![g force gymnastics g force gymnastics](http://www.clubgymini.org/wp-content/themes/underdog/assets/img/disciplines-photos/g-force-cheerleading.png)
The unit g is not one of the SI units, which uses "g" for gram. The unit definition does not vary with location-the g-force when standing on the Moon is almost exactly 1⁄ 6 that on Earth.
![g force gymnastics g force gymnastics](https://www.gymnasticsphoto.com/img/s/v-10/p2344821716-4.jpg)
One g is the force per unit mass due to gravity at the Earth's surface and is the standard gravity (symbol: g n), defined as 9.806 65 metres per second squared, or equivalently 9.806 65 newtons of force per kilogram of mass.
#G force gymnastics free
However, to distinguish acceleration relative to free fall from simple acceleration (rate of change of velocity), the unit g (or g) is often used. The unit of measure of acceleration in the International System of Units (SI) is m/s 2.
![g force gymnastics g force gymnastics](https://www.gymnasticsphoto.com/img/s/v-3/p2344817033-4.jpg)