Bozeman Science
Voltage, Current and Resistance
Mr. Andersen describes the relationship between voltage, current and resistance in an electric circuit. Ohm's Law is introduced through a circuit simulation.
SciShow Kids
The Power of Sunlight! Science Project for Kids
Jessi and Squeaks use the power of the sun to conduct a cool science experiment!
MinutePhysics
MAGNETS - How Do They Work
How do magnets work? Why do they attract and repel at long distances? Is it magic? No... it's quantum mechanics, and a bit more, as we explain in this, the longest MinutePhysics video ever.
Science Buddies
Analog RGB LED Strip Control with Arduino (Lesson #29)
This easy video tutorial will show you how to use an Arduino.
Curated Video
The Elements: Copper
Copper has been used by man for thousands of years. Chemistry - Periodic Table - Learning Points. Copper is a malleable metal. Copper is extracted from ore. Copper is a good conductor of electricity and heat. Copper helps to keep the...
Curated Video
Motor effect
The force experienced by a current-carrying wire when placed within a magnetic field. A Twig Science Glossary Film. Key scientific terms defined in just 60 seconds using stunning images and concise textual definitions. Twig Science...
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...
Curated Video
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...
Curated Video
Circuits
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...
Curated Video
Resistance
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...
Curated Video
What Are Electromagnets?
How do electromagnets differ from permanent magnets, and what are they used for? Physics - Electricity And Circuits - Learning Points. An electromagnet is created by running an electrical current through a coil of wire. An electromagnet...
Curated Video
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...
Curated Video
Rock Star Shock
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...
Curated Video
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 -...
Curated Video
Hi-Fi Engineering
A demonstration of how hi-fi speakers use a clever combination of electronics and magnetism to convert electrical impulses into sound waves, which our brain then interprets as music. Physics - Electricity And Circuits - Learning Points....
Curated Video
AC, DC and Transformers
Power loss affects electricity supply, especially to homes far from power stations. Why is power lost, and how is electricity effectively transported over long distances? Physics - Electricity And Circuits - Learning Points. Direct...
Curated Video
Measuring Music
We use a sounding board called a sonometer to investigate how the pitch of sound changes when the length of wire being plucked changes. We change the position of a moveable bridge to change the length of the wire and discover that...
Curated Video
Making an Electromagnet
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...
Curated Video
Incandescent Light Bulb
We look at how an incandescent light bulb can be made. First we attach a tungsten wire to electrodes in a flask of air and pass a current through the wire. The wire glows briefly before burning and breaking. Next we fill the flask with...
Curated Video
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...
Curated Video
Electrical resistance
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...
Flipping Physics
Motional emf via Faraday's Law
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...
Flipping Physics
Electric Motor Basics
In today's lesson, we delve into the fascinating world of electric motors. Visualize a rectangular conducting loop in a uniform magnetic field – the key to motor magic. As we explore the loop's rotation, we decipher induced magnetic...
Flipping Physics
Lenz's Law
In this episode, Mr. P takes us deeper into Faraday's law, exploring the crucial element of direction by introducing Lenz's law. Lenz's law states that the induced current in a circuit, due to a change in magnetic flux, is directed to...