Initial Ideas: You investigated how two objects interact when one or both have a net charge or have a charge imbalance. These objects did not have to be in contact to act on or influence each other. Prior to the semester, you studied another interaction (force) that also did not require the objects in contact with each other. What was that force? Discuss and record concepts you recall related to this force. Scientists constructed a working model to make interaction possible between objects that are not in physical contact. The field model approach for interaction-atused in mechanics, where the field served as an intermediary