Final answer:
Flipping the switch to turn off the light results in an open circuit because it interrupts the path for the current, preventing electricity from flowing to the light.
Step-by-step explanation:
Turning off the light by flipping the switch results in an open circuit. In an open circuit, the path for the current to flow is interrupted, meaning there is a break in the circuit. This is the opposite of a closed circuit, which would have a complete path for current to flow. When the girl flips the switch to turn off the light, she creates a gap in the electrical circuit, preventing electrical current from flowing to the light, thus the light turns off.