An extension board or power strip comprises multiple sockets connected independently to a flexible power cable and encased in a shockproof plastic shell. It draws power from the wall sockets and distributes it amongst devices connected...

The working of an electric iron is very simple – it draws electricity from the mains and heats a coil inside. This heat is then transferred to the bottom plate, which is pressed against the clothing to remove wrinkles. It is the...

Voltage vs current, or sometimes it's current vs voltage; we are constantly trying to understand the differences between these two entities related to electricity. Then, there is sometimes one more entity: resistance. How do these three...

The Warner brothers began their career in the Pittsburgh area by opening a small theater but soon realized the greater potential in making movies. This led them and others to shift from theater operations to film production, eventually...

An electrical conductor that connects to a non-metallic part of a circuit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

The SI unit of electric potential or electromotive force.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...

A safety device used to prevent an overload of current in an electrical circuit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

An electric current in which the flow of electric charge is consistently in one direction.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

A safety device that breaks a circuit when the current exceeds a safe limit.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions....

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...

What are circuits and why do we need them? What happens if you break a circuit? Physics - Electricity And Circuits - Learning Points. Circuits are composed of a voltage source and components. The current in a series circuit is the same...

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...

How do you design or explain a circuit using only pen and paper? Find out the universal symbols which stand for different parts of the circuit.
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Physics - Electricity And Circuits - L
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rning Points.
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The story of one young guitarist, who befell the dangers of electricity. Why is electricity dangerous to humans? And is it only voltage which can be deadly? Physics - Electricity And Circuits - Learning Points. An electrical current of...

Melting icecaps are threatening one of the most important currents in the world, the Great Ocean Conveyor. If it stopped, it could have devastating impacts on our climate. Earth Science - Human Impacts - Learning Points. The Great Ocean...

Electric eels can generate amazing amounts of electricity inside their body. Discover how they use this for defence and to stun potential prey. Physics - Electricity And Circuits - Learning Points. Electric eels create electricity to...

Opposition to the flow of a current within a circuit, measured in ohms. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science Glossary Films...

What is it? ... These are electricity pylons!
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Physical processes - Electricity and magnetism


- Electricity


A Twig Tidbit Film - Jigsaw. An image is slowly revealed as pieces of the jigsaw are...

Two bulbs are added to a series circuit ... what happens next?
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Physical processes -Electricity and magnetism - Series and par
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llel circuits


A Twig Tidbit Film - What happens next? A short section...

Discover who makes sure the electricity stays switched on in our homes.
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Physical processes - Electricity and magnetism


- Electricity />

Learning Points
Electricity onl
y

flows when a circuit...

Discover that the lights of the Eiffel Tower form part of an electrical circuit.
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Physical processes -Electricity and magnetism - Elect
r

ical circuits />

Learning Points
Circuits usually...

Six circuit diagrams are shown, only three of them are series circuits ... can you spot them?
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Physical processes - Electricity and magnetism - Series and par
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llel circuits


A Twig Tidbit Film - Spot...

Learn how to identify universal circuit symbols.
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Physical processes - Electricity and magnetism - Elect
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ical circuits />

Learning Points
Electrical circuits are draw
n

using universal...

Find out how to construct a series circuit.
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Physical processes - Electricity and magnetism - Series and par
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llel circuits />

Learning Points
Series circuits conne
c

t components along a...