Changing force throughout an animation Is it possible to change the strength of a magnetic force throughout an animation? I would like to increase the strength from -2 to 0 and then to 2. If you can help that would be great!
Strength of Force Fields can be keyframed, like the value of most properties in Blender.

To set a keyframe, go to the frame where you want to assign a Force value and set the value. Then, with your mouse over that field, press I. Now you can move to another frame, change the value and repeat.