The pictures show a rod made of glass, a swatch of plastic wrap, and an insulated ball of gold, all initially uncharged. The rod is dragged across the plastic wrap in order to transfer some charge. Label the signs of the electric charge on the glass and the plastic wrap. Once the rod is charged, it is placed near the gold ball without making contact. Label the rod and the near and far sides of the gold ball with the signs of their electric charges. Answer Bank ++++ no charge Rod Rod ...... Near side Swatch Metal ball Far side ..........

The pictures show a rod made of glass, a swatch of plastic wrap, and an insulated ball of gold, all initially uncharged. The rod is dragged across the plastic wrap in order to transfer some charge. Label the signs of the electric charge on the glass and the plastic wrap. Once the rod is charged, it is placed near the gold ball without making contact. Label the rod and the near and far sides of the gold ball with the signs of their electric charges. Answer Bank ++++ no charge Rod Rod ...... Near side Swatch Metal ball Far side ..........