Bozeman Science
Resistors and Capacitors
In this video Paul Andersen explains how resistors and capacitors affect circuits. The resistance of a resistor is affected by the resistivity of the material and the geometry of the resistor. The current through a resistor can be...
Bozeman Science
Electrochemistry
In this video Paul Andersen explains how electrochemical reactions can separate the reduction and oxidation portions of a redox reactions to generate (or consume) electricity. The half reactions can be analyzed to determine the potential...
TED-Ed
TED-Ed: Why a sausage can do what your gloves cannot | Charles Wallace and Sajan Saini
In 2010, South Korea experienced a particularly cold winter. People couldn't activate their smartphones while wearing gloves, so they began wielding snack sausages— causing one company to see a 40% rise in sausage sales. So, what could...
Crash Course
AC Circuits: Crash Course Physics
We've talked about AC Circuits, but now it's time to delve into the world of AC Circuits (or Alternating Currents). We’ve talked about how they change voltage, which helps transmit electricity over long distances, but there’s so much...
Bozeman Science
Electricity and Electric Circuits
Mr. Andersen introduces the topic of electricity. He differentiates between static electricity and current electricity. An introduction to electric circuits is also included.
Bozeman Science
Kirchoff's Loop Rule
In this video Paul Andersen explains how Kirchoff's Loop Rule can be used to calculate the voltage of different components of a circuit. The sum voltage throughout an entire loop will sum to zero following the law of conservation of...
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.
Crash Course
The Nervous System - CrashCourse Biology
Hank begins a series of videos on organ systems with a look at the nervous system and all of the things that it is responsible for in the body.
Crash Course
Voltage, Electric Energy, and Capacitors: Crash Course Physics
So, how do those defibrillators you see on TV actually work? Surprise! Physics can explain! Okay buckle up, everyone! Today, Shini has the task of breaking down Electrical Potential Energy, Electric Potential, Voltage, Capacitors, Energy...
Bozeman Science
Electric Circuits
In this video Paul Andersen explains how electric circuits contain different elements which can be connected in series or in parallel. The following four elements are explained in detail; emf, resistor, capacitor, and switch. The voltage...
Science Buddies
How to Use a Photoresistor (Light Sensor) with Arduino (Lesson #27)
This easy video tutorial will show you how to use an Arduino.
Science Buddies
LED Circuit Design: Power and Efficiency
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Science ABC
How Does a Light Bulb Work?
An incandescent bulb mainly consists of two parts—the bulb and the filament. The bulb is generally made of glass, within which is a vacuum. The filament inside the bulb is where the actual light is produced. It is made of a long and...
Curated Video
Millikan's Oil Drop Experiment : Tiny Drops, Big Discoveries
Millikan's Oil Drop Experiment: A Discovery and Impact Experimental Setup: • The experiment involved measuring the force on charged oil droplets suspended between two metal plates. • The apparatus included an atomizer, observation...
Science Buddies
LED Circuit Design: LEDs in Series
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
Science Buddies
LED Circuit Design: Solve for Current with Known Resistor
Learn to design LED circuits for maximum efficiency, including choosing a battery and resistors, in this electrical engineering project.
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.
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...