Electricity and circuits

Front

What is an electrical circuit?

Back

An electrical circuit is a closed loop that allows electric current to flow, consisting of a power source, conductors, and a load (like a light bulb).

Front

What do you need to complete an electrical circuit?

Back

You need a power source (like a battery), conductors (like wires), and a load (like a light bulb).

Front

What is a conductor?

Back

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

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity to flow through it easily, such as rubber or plastic.

Front

What happens when you strip the plastic coating off a wire?

Back

Stripping the plastic coating exposes the metal conductor, allowing electrical current to pass through.

Front

What is a parallel circuit?

Back

A parallel circuit is a type of circuit where there are multiple paths for electricity to flow, so if one path is broken, others can still work.

Front

What is a series circuit?

Back

A series circuit is a type of circuit where all components are connected in a single path, so if one component fails, the entire circuit stops working.

Front

Why are metals good conductors of electricity?

Back

Metals have free electrons that can move easily, allowing electric current to flow.

Front

What is the role of a switch in a circuit?

Back

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

Front

What is the advantage of a parallel circuit over a series circuit?

Back

In a parallel circuit, if one bulb burns out, the others remain lit.