1. The problem statement, all variables and given/known data 3. The attempt at a solution Top left: No charge flowing through circuit b/c switch is open, not closed. Top right: No charge flowing through circuit b/c circuit does not connect positive and negative terminals Bottom left: Charge flows through circuit b/c closed loop between + and - terminal. Bottom right: No charge can flow through since negative terminal cannot be directly connected to another negative terminal. Please let me know if these answers are correct and how I can make them better. Thank you!