- The first circuit (top-left) is incomplete because the switch is open, so no current flows.
- The second circuit (top-right) is complete and functional with a closed switch, allowing current to flow through the bulb.
- The third circuit (middle-left) is complete and functional with two bulbs in series, both will light up.
- The fourth circuit (middle-right) is incomplete because there is a gap in the wiring, preventing current from flowing.
- The fifth circuit (bottom-left) is complete and functional with two batteries in series powering one bulb.
- The sixth circuit (bottom-right) is complete and functional with two batteries in series powering a bulb and a motor in series.
Parent Tip: Review the logic above to help your child master the concept of drawing circuits worksheet.