Conductors and Insulators

Front

What is a conductor?

Back

A conductor is a material that allows electricity or heat to pass through it easily. Examples include metals like copper and aluminum.

Front

What is an insulator?

Back

An insulator is a material that does not allow electricity or heat to pass through it easily. Examples include rubber, plastic, and wood.

Front

Why is copper used in electrical wires?

Back

Copper is used in electrical wires because it is a good conductor of electricity, allowing electric current to flow easily.

Front

Why is plastic used to cover electrical wires?

Back

Plastic is used to cover electrical wires because it is an insulator, preventing electric current from escaping and protecting people from electric shocks.

Front

What happens to heat when it passes through a conductor?

Back

When heat passes through a conductor, it transfers quickly, making the conductor feel warm.

Front

What happens to heat when it passes through an insulator?

Back

When heat passes through an insulator, it slows down, keeping the insulator cool.

Front

Give an example of a good insulator.

Back

A rubber glove is a good insulator because it does not allow electricity to pass through easily.

Front

What is the role of wool in keeping warm?

Back

Wool acts as an insulator, trapping heat and preventing it from escaping, which keeps the body warm.

Front

Can an insulator conduct electricity?

Back

No, an insulator does not conduct electricity well; it resists the flow of electric current.

Front

What is the difference between conductors and insulators?

Back

Conductors allow electricity and heat to flow easily, while insulators resist the flow of electricity and heat.