Summary 1. Will two neutral objects experience an electrical interaction? What is your evidence? 2. Describe how an insulator can acquire a charge. 3. Describe how a conductor acquires a charge. 3 MacBook Pro4. How do two objects with like charges interact? What is the evidence from your investigations? 5. How do objects with unlike charges interact? Cite your evidence from your experiment. MacBook ProS5. Drag the charged to the wall. How does the - Show all charges screen compare with the - Show charge differences screen? N S6. Reset and click - Two balloons, - Wall, - Show charge differences. Rub both balloons on the sweater. Drag one balloon to the center of the screen, release; drag the second near it and release. How do the two balloons interact? Sketch a charge diagram of the two balloons. Close the simulator.of 4 Automatic Zoom 2. Suggest an explanation for each of the observations. 2a. 2b 2c. 3. Imagine that during the interaction you can see charges on each object. Sketch a charge diagram for each situation. 1PHET Simulator Exploration: You can check your ideas using a special computer program. Open the "Balloons & Static Electricity" simulation. Set the simulator - Show all charges. S1. Are the objects neutral? How do you know? S2. The simulator objects are analogous to the objects you used. Complete the table below. Simulator Investigation sweater balloon wall S3. Drag the balloon to the sweater and 'rub'. Drag the balloon away from the sweater and release it. Record your observation. S4. Click - Show charge differences. Sketch a charge diagram.ELECTROSTATICS Investigation: How do charged nonmetallic objects interact? Materials: balloon paper dots wool 1. Record your observation as you perform each of the following actions: la. an un-rubbed inflated balloon slowly brought near (not touching) paper dots 1b. an inflated balloon rubbed with wool then slowly brought near paper dots 1c. two rubbed inflated balloons brought near each other 2. Suggest an explanation for each of the observations. 2a. 2b. 2c