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...

Gold can be found in many forms and has been used as currency for centuries. But what properties does it have that make it so valuable? Earth Science - Geology - Learning Points. Gold occurs naturally in many distinct forms. Native gold...

Learn about silver and why it is so valuable.



Chemistry - Periodic Table - Learni

ng Points.

Silver is found in relatively small

quantities on Earth.

r/>Silver is a good conductor.

Sil

ver ions...

The generation of a voltage in a conductor when placed within a changing magnetic field.
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A Twig Science
Glossary Film.
Key scientific terms defined in just 60 seconds using stunning images and concise textual...

Carbon occurs naturally in four different forms. Discover how they differ and why? Chemistry - Atoms And Bonding - Learning Points. Carbon is present in all living organisms. Carbon in its elemental form appears as four distinct...

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...

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...

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 -...

Transition metals are the largest group in the periodic table. Find out what similarities they share, and how we make use of these metals. Chemistry - Periodic Table - Learning Points. Transition metals are found as a block in the middle...

We create a simple electromagnet by coiling wire around a nail and passing current through it. The magnetic field around the electromagnet creates similar patterns in iron fillings to a permanent magnet. Physics - Electricity And...

How these simple semiconductor devices allow us to control the strength and flow of electrical current in a circuit, and are integral components in modern electrical equipment. Physics - Electricity And Circuits - Learning Points....

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...

Discover how lightning rods protect buildings when they are struck and why they are made of metal.
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Material processes - Classifying materials - Choosing suit
a

ble materials


A Twig Tidbit Film -...

True or false ... Water can conduct electricity?
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Physical processes -Electricity and magnetism - Conductors and dangers
o

f electricity />

Learning Points
Water is a non-
m

etal that can...

A Bunsen burner heats up the end of a metal rod ... what happens next?
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Physical processes -Energy and energy transfer -


Heat transfer


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

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...

Discover that lightning is a form of static energy.
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Physical processes -Electricity and magnetism - Conductors and dangers
o

f electricity />

Learning Points
Lightnin
g

is a type of static...

Find out what happens to a farmer who becomes part of an electrical circuit.
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Physical processes - Electricity and magnetism - Conductors and dangers
o

f electricity />

Learning Points /

>...

Find out what the difference is between a conductor and an insulator.
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Physical processes - Electricity and magnetism - Conductors and dangers
o

f electricity />

Learning Points
Conductors...

Why does metal expand when it gets hot?
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Material processes - Changing materials - Expansion
a

nd conduction />

Learning Points
Conductors are materials that allow
e

nergy to flow easily...

If you were an alien who had just landed on Earth, what materials would you use to help you survive?
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Material processes - Classifying materials - Choosing suit
a

ble materials />

Learning Points...

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...

In today's episode, we explore an alternative derivation of the motional emf equation, revealing a fascinating perspective. Picture a conductor moving right on parallel metal rails connected by a wire in a uniform magnetic field. A force...

In this next episode, Mr. P guides us through the culmination of electromagnetic knowledge – Maxwell's equations. After a quick recap of Gauss's law and its magnetic counterpart, the class dives into Faraday's law of induction, unveiling...