Force field facts for kids
A force field is a field of energy that usually blocks something.
Research and development
The plasma window is a real-live object that resembles the force field, it provides a separation between vacuum and gas. There is only one true ideal of creating a 'force shield': using an electric field to change the way metallic items move, although no power is known to be powerful enough to do this.
Force field Facts for Kids. Kiddle Encyclopedia.