Lesson 4: How is Energy Transferred by Electric Currents?

Front

Does a battery produce an electric current?

Back

Yes, a battery produces an electric current.

Front

What is a device that uses an electric current to produce motion?

Back

A motor is a device that uses an electric current to produce motion.

Front

What are materials such as copper or aluminum that allow heat and electricity to pass through them?

Back

These materials are called conductors.

Front

What are materials that do not allow heat and electricity to pass through them?

Back

These materials are called insulators. Examples include wood, paper, and rubber.

Front

What do we call the interactions between moving electric charges?

Back

This is called electricity.

Front

What is the role of a switch in an electric circuit?

Back

A switch controls the flow of electric current in a circuit.

Front

What is an electric current?

Back

An electric current is the flow of electric charge, typically measured in amperes.

Front

What is the purpose of power lines?

Back

Power lines are used to transport electricity over long distances.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electricity to flow through them, while insulators do not.

Front

What is a solar cell?

Back

A solar cell is a device that converts sunlight into electricity.