Determining whether two charges attract or repel each other using the law of charges
Recognizing that electrons are negatively charged and can move and protons are positively charged and stay in place
Reviews conduction and insulation, sub-atomic changes related to the charge on an object, and the design and use of an electroscope.
This is an activity for students to complete before reading the Forces on Charged Objects Concept
Learn how force due to a point charge changes as a function of distance.