ATHS Engineering
POE Circuit Sample Problems
Today, we will walk through four sample problems: one basic Ohm's Law problem, one series circuit, one parallel circuit, and a complex series circuit. This video is intended for use in engineering classes at Arsenal Technical HS.
Science ABC
What If Charger Is Plugged Into Supply But Not Connected To A Device?
In a situation where the charger is connected to a socket without any device plugged in, the charger will draw a minimal current from the mains and the regulator will maintain a steady supply of 5 V. Since the charger is not connected to...
Science ABC
What Are Extension Boards And How Do They Power Multiple Devices At Once?
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...
Science ABC
How Do Neurons Work?
Neurons send signals through a mechanism called action potential. Action potentials are electrical signals that pass through the neuron’s axon. This causes the neuron to pass the signal to the next neuron. Action potentials are the...
Science ABC
Current Vs Voltage: How Much Current Can Kill You?
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...
Curated Video
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...
Curated Video
Transformer
A device used to change the voltage of an alternating current. 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...
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
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
Thunder and Lightning
Thunderstorms can be an impressive sight, but how are they formed? What is happening deep inside certain clouds to create such huge bolts of energy? Earth Science - Weather - Learning Points. Thunderstorms form in dense tall clouds...
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
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...
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
War of the Currents
The battle between famous 19th century inventors Edison and Tesla for a slice of America's electricity market, and the lengths they went to in order to secure it. Physics - Electricity And Circuits - Learning Points. Thomas Edison...
Curated Video
Citrus Fruit Battery
We use lemons and strips of zinc and copper to make a battery. First, strips of copper and zinc are added to one lemon and they are connected across a voltmeter. This is repeated, this time with more lemons and metal plates, until a...
Curated Video
Diodes and Transistors
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....
Curated Video
Electrical circuits – Did you know?
Did you know that the force or push of an electric current is measured in volts? Physical processes - Electricity and magnetism - Electrical circuits Learning Points The current of a circuit is measured in volts. A Twig Tidbit Film - Did...
Curated Video
What is Electricity? - Power Basics
Explore in simple terms what electricity is, how it is created and how it travels to our homes. Physical processes - Electricity and magnetism - Electricity Learning Points Electricity is a form of energy. Electricity is the flow of...
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...
Curated Video
सीरीज और पैरलल सर्किट | बिजली | भौतिक विज्ञान | FuseSchool Hindi
यह वीडियो विद्युत परिपथों पर आधारित है, जिसमें श्रृंखला और समानांतर परिपथों पर ध्यान केंद्रित किया गया है। इसमें वोल्टेज, धारा और प्रतिरोध जैसे बुनियादी सिद्धांतों को व्यावहारिक उदाहरणों और गणनाओं के माध्यम से समझाया गया है। वोल्टेज...
Curated Video
Physical Properties of the Electric Current: Ohm's Law
By the end of this learning object, the student will be able to: Explain the electric resistance rule.
Science Buddies
Micro:bit Solar Tracker
In this engineering project you will build and test a mini solar tracker system using a micro:bit.