This video is answering the question of where can I find insulators and conductors.

Today, we'll explore the materials electrical engineers work with. We'll look at high-conductors, insulators, and how low-conductivity conductors can be used to generate light and heat.

We use a metal box holding rods of different materials to test their ability to conduct heat. The box is filled with boiling water and a paperclip is attached to the end of each rod using petroleum jelly. As the heat moves through the...

Dr. Forrester explains the production of electricity and materials used to insulate and conduct it.

Why does metal expand when it gets hot?
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Material processes - Changing materials - Expansion
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Learning Points
Conductors are materials that allow
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nergy to flow easily...

Beautiful Bonds: The World of Covalent and Metallic Solids

Covalent solids, also known as network solids, are materials with atoms bonded together in a continuous network by covalent bonds, resulting in large, rigid structures....

Four different materials are shown, but which is the only one that is not an insulator?
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Physical processes - Energy and energy transfer -


Heat transfer


A Twig Tidbit Film - Odd one out. The...

This video explains the concept of thermal conduction, which is the transfer of thermal energy through solids. The video discusses the three main mechanisms of thermal energy transfer, thermal conduction, convection and thermal...

Did you know that wooden or plastic utensils are used when cooking food because they are insulators?
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Physical processes - Energy and energy transfer -


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Learning Points <
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Dr. Forrester defines the terms conductor, resistor, and insulators by relating them to electrical charges. She also performs an experiment and labels objects as conductors or insulators.

What is resistance? Discover how it impedes electrical flow, and why understanding it can help us to build more effective circuits, and stay safe. Physics - Electricity And Circuits - Learning Points. Resistance is how well or poorly an...