5.4 Electricity Review

Front

What is a closed circuit?

Back

A closed circuit is a complete electrical loop that allows electricity to flow through it.

Front

What is an open circuit?

Back

An open circuit is a broken electrical loop that prevents electricity from flowing.

Front

What is the function of a switch in a circuit?

Back

A switch controls the flow of electricity by opening (turning off) or closing (turning on) the circuit.

Front

What is a battery?

Back

A battery is a device that stores electrical energy and provides power to a circuit.

Front

What is an electromagnet?

Back

An electromagnet is a type of magnet that is created by electric current flowing through a coil of wire.

Front

How does increasing the number of coils affect an electromagnet?

Back

Increasing the number of coils around the nail increases the strength of the electromagnet.

Front

What is the role of a lightbulb in a circuit?

Back

A lightbulb converts electrical energy into light energy when electricity flows through it.

Front

What is a dry cell?

Back

A dry cell is a type of battery that provides electrical energy through a chemical reaction.

Front

What materials can be used to create an electromagnet?

Back

Common materials include a wire, a battery, and a ferromagnetic core like a nail.

Front

What happens when a circuit is complete?

Back

When a circuit is complete, electricity flows and devices like lightbulbs can operate.