Curated Video
Static Electricity: Surface Charge Buildup
The accumulation of electric charge, positive or negative, on the surface of an object. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Electrostatic attraction
The attraction between two bodies with opposite electric charges due to the charge alone. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Positive charge
The charge that an object has due to a lack of electrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Negative charge
The charge that an object has as a result of an excess of electrons. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Electric Current
Electrical current is the flow of electric charge. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films reinforce abstract...
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Van der Waals Force
A type of intermolecular force that causes attraction between molecules. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
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Electrical charge
A fundamental property of matter that means all particles are either positive, negative, or neutral. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....
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Alternating current
An electric current in which the flow of electric charge periodically changes direction. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Electrical fuse
A safety device that breaks a circuit when the current exceeds a safe limit. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...
Curated Video
Neurons as Cells
Everything our brain does, from controlling movement to conscious thought, is achieved by the firing of electrical signals called neurons. Biology - Being Human - Learning Points. Everything our brain does is achieved by electrical...
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Electrical Safety
Whether it's a faulty appliance or a bolt of lightning, an electric shock can be fatal. How can we avoid electric shocks? Physics - Electricity And Circuits - Learning Points. If humans become part of an electric circuit they will...
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Electromagnetic induction
The generation of a voltage in a conductor when placed within a changing magnetic field. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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Metallic Bonding
Metals can be strong and hard, or they can be flexible. It's the special behaviour of ions that give metals their different properties. Chemistry - Atoms And Bonding - Learning Points. Metal atoms bond together and create giant lattice...
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What is Electricity? - Energy Movement
What is electricity? How is it created, and what makes it useful? Physics - Electricity And Circuits - Learning Points. Electricity is a flow of charge. The flow of moving electrons is known as the electric current. Voltage is the amount...
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Static Electricity: The Hidden Dangers for Helicopters and Crew
A build up of static electricity is usually harmless, resulting in only small shocks. But in some cases it can be deadly. Discover the danger static electricity poses for helicopters and their crew. Physics - Electricity And Circuits -...
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Capillary Action
Water is added to dry and bent matchsticks to let us see capillary action at work. The wood absorbs the water causing the matchsticks to straighten. Biology - Plants - Learning Points. Water is a polar molecule because the electrons are...
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Balloon and Treacle
We investigate the effect that unbalanced charge has on polar molecules. We rub a balloon against hair to build up a negative charge and then hold this near a stream of water and then a stream of treacle. They both bend towards the...
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Van de Graaff Generator
We use a Van de Graaff generator to investigate static electricity. The generator is turned on and we see a spark move between the two domes. We then place a wig on the main dome and see the hair rise as the charge builds and the hairs...
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What is an Atom?
From our bodies to the oceans and stars, everything is made of millions upon millions of tiny atoms. But what are atoms made of? Chemistry - Atoms And Bonding - Learning Points. The building blocks of all elements are called atoms. Atoms...
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Forces of Nature
Introducing the four main forces of nature: gravity, electromagnetic force, weak and strong nuclear forces. Learn why they are fundamental to life on Earth. Physics - Forces - Learning Points. There are four fundamental forces of nature....
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How Do Generators Work?
Discover how simple magnets and wires can be used to create electricity - and how this principle is now used in national power supplies. Physics - Electricity And Circuits - Learning Points. In 1835 the scientist Michael Faraday made an...
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Polarity
Electrical polarity is the arrangement of positive and negative charge in an electrical circuit, or distribution of positive and negative charge in, for example, a chemical bond. A Twig Science Glossary Film. Key scientific terms defined...
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Lightning - Static Electricity
Discover that lightning is a form of static energy. Physical processes -Electricity and magnetism - Conductors and dangers of electricity Learning Points Lightning is a type of static electricity. Static electricity is formed inside...
Flipping Physics
Motional emf via Newton's Second Law
Ever wondered how the motion of a conductor in a magnetic field generates voltage? We break it down with a real-world example of an airplane wing cruising through Earth's magnetic field. Don't worry; we keep it light and fun! Learn about...