Suppose Your Instructor Staggers into Class the Morning After an All-Night

Essay

Suppose your instructor staggers into class the morning after an all-night excellence in classroom humor workshop. He proceeds to do a demonstration in class where he measures a 6.67 N gravitational force of repulsion between two particles each having a mass of 1 kg and separated by 1m. Moreover he cuts the distance to 0.1 of what it originally was and then claims the force changes to a new value of 0.667 N. Specific to the scientific content of his demonstration please briefly describe three important concepts he incorrectly illustrated (there's more than three, trust me). One of your three points must be quantitative - involving a force calculation of some sort.