1. A circuit diagram uses symbols to represent parts of a circuit, including sources of electrical energy and devices that use the electrical energy.
2. 1 → B. A negative terminal
3. 2 → C. A positive terminal
4. 3 → A. The direction of current
5. True. If a battery loses its charge, it cannot provide the necessary voltage to push electrons through the circuit, so no current flows and the bulb will not light.
6. False. In a home, most electrical circuits are wired in parallel so that each device can operate independently. If one device fails or is turned off, the others continue to work.
7. Parallel. In a parallel circuit, if one component stops functioning, the other components can still operate because they have separate paths for current flow.
Parent Tip: Review the logic above to help your child master the concept of electric circuits and electric current worksheet answers.
