# What are field forces in physics?

Mar 6, 2018

When a body exerts an influence into the space around itself, we say that the body creates a " field " around itself.

#### Explanation:

I tried to look up "field forces" but found nothing related to Physics given that phrase. I will assume you mean "force fields". When a body exerts an influence into the space around itself, we say that the body creates a " field " around itself. There are 2 examples in Physics.

The first is Electric field.

There are many ways to create an electric field. The simplest example of the body that creates the field would be one with a static electric charge Q. An electric field is a vector quantity and the direction of the field depends on the polarity of the charge.

When an electric field exists at a location, if a second body with an electric charge q is placed at that location, the body will experience a force of either attraction or repulsion. Whether the force is attraction or repulsion depends on whether the polarity of Q and q are the same or opposite.

The second is Gravity field

There is only one type of source of a gravity field. A body with mass M will have a field surrounding it. When a gravity field exists in a location, if a body with mass m is placed at that location, the body will experience a force of attraction, never repulsion (that we proven).

When an gravity field exists at a location, if a second body with mass m is placed at that location, the body will experience a force of attraction.

The following link will take you to a site that helped me with this answer.
https://en.wikipedia.org/wiki/Force_field_(physics)

I hope this helps,
Steve