# Wright State University Lake Campus/2016-1/Phy1120/log/Guy vandegrift

## 1/20 effort to define field edit

### Using html tag edit

each field contains certain proterties that have similar effects.

- A field is a function, usually of two or more variables, but traditionally not more than four. the simplest field is a function of spatial dimensions x, and y. For example, altitude avove sea level = h(x,y) is a field.
- Another field surfact tempertature T(x,y) within, a state in the USA.

A gravitational field is a function of 3 dimensiona, and it is a vector field. To good approximation within a small region where x,y coordinates are Cartesian. **g** = **g**(z) where vector g poind downs with a magnitude of 9.8m/s/s near z = 0 altitude, and decreases slightly as you go above sea level.

- What do I need to know in order to calcuate the acceleration of a particle due to a known electric field?