5.8B Electrical Energy and Circuits Review

Front

What is a closed circuit?

Back

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

Front

What is an open circuit?

Back

An open circuit is a broken electrical loop where current cannot flow, preventing devices from functioning.

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 is the role of a battery in a circuit?

Back

A battery provides the electrical energy needed to power a circuit.

Front

What is a switch in an electrical circuit?

Back

A switch is a device that can open or close a circuit, controlling the flow of electricity.

Front

What materials can be used as conductors?

Back

Common conductors include metals like copper, aluminum, and even sea water.

Front

What materials are considered insulators?

Back

Materials like rubber, plastic, and glass are considered insulators.

Front

What happens when a light bulb is connected in a closed circuit?

Back

The light bulb glows because electricity flows through the circuit.

Front

What happens in an open circuit?

Back

In an open circuit, the flow of electricity is interrupted, and devices like light bulbs do not work.