Conductors and Insulators

Front

What is the definition of a conductor?

Back

A conductor is a material that allows the flow of heat or electricity through it easily.

Front

What is the definition of an insulator?

Back

An insulator is a material that does not allow the flow of heat or electricity through it easily.

Front

Give three examples of conductors.

Back

Copper, aluminum, and silver are examples of conductors.

Front

Give three examples of insulators.

Back

Rubber, glass, and wood are examples of insulators.

Front

What is the role of conductors in electrical circuits?

Back

Conductors allow electric current to flow through the circuit, enabling the operation of electrical devices.

Front

What is the role of insulators in electrical circuits?

Back

Insulators prevent the flow of electric current, protecting users from electric shock and ensuring that current flows only through intended paths.

Front

Is water a conductor or insulator?

Back

Pure water is a poor conductor, but impure water (like tap water) can conduct electricity due to dissolved minerals.

Front

Why are metals generally good conductors?

Back

Metals have free electrons that can move easily, allowing them to conduct heat and electricity efficiently.

Front

What property of materials determines whether they are conductors or insulators?

Back

The atomic structure and the presence of free electrons determine whether a material is a conductor or an insulator.

Front

How does temperature affect the conductivity of materials?

Back

Generally, as temperature increases, the conductivity of conductors decreases, while the conductivity of insulators may increase.