Define the term insulator and explain how this differs to conduction. Identify an example of an insulator and explain how it is used

Definition of Insulator: An insulator is a material that does not allow the flow of electric current or heat. It is characterized by its high resistance to the flow of electric charge or heat energy.

Difference between Insulator and Conduction: The main difference between an insulator and conduction lies in their ability to transmit energy. In conduction, energy (such as heat or electricity) is transferred through a conductor (like a metal) because the energy is able to move freely through the material. On the other hand, an insulator restricts this flow of energy.

Example of an Insulator: A common example of an insulator is rubber.

Use of Insulator: Rubber, being an insulator, is often used to coat or cover materials that conduct electricity, like the wiring in electrical appliances. This is to prevent the electric current from coming into contact with other conductors or people, which could result in electric shock. By using an insulator like rubber, the flow of electricity is restricted to the intended path, making the appliance safe to use.