Circuits Review

A closed circuit is a complete electrical loop that allows current to flow, enabling devices like light bulbs to operate.

An open circuit is a broken electrical loop that prevents current from flowing, causing devices to not operate.

A conductor is a material that allows electrons to flow easily, such as copper or aluminum.

An insulator is a material that does not allow electrons to flow easily, such as rubber or glass.

In a series circuit, if one bulb goes out, all bulbs will go out because the circuit is broken.

In a parallel circuit, if one bulb goes out, the other bulbs will stay lit because they have separate paths for current.

Copper is used in electrical wiring because it is an excellent conductor of electricity.

A switch is used to open or close a circuit, controlling the flow of electricity.

A series circuit is a type of circuit where components are connected end-to-end, so the same current flows through all components.

A parallel circuit is a type of circuit where components are connected across common points, allowing multiple paths for current.