Curated Video
Understanding the Turns Ratio Equation in Transformers
This is a lecture video on the turns ratio equation for transformers. The video explains how the potential difference across the primary and secondary coil of a transformer depends on the number of turns of wire in each of the coils. The...
Flipping Physics
Series and Parallel Circuits - Review for AP Physics C: Electricity and Magnetism
AP Physics C: Electricity and Magnetism review of series and parallel circuits including: derivations of equations for resistors in series, resistors in parallel, capacitors in parallel, and capacitors in series, and where to place...
Mazz Media
Pull
This live-action video program is about the word pull. The program is designed to reinforce and support a student's comprehension and retention of the word pull through use of video footage, photographs, diagrams and colorful, animated...
Curated Video
Understanding the Dynamo: How the Generator Effect Produces Direct Current
The video explains how the generator effect is utilized in a Dynamo to produce a direct current. The concept of the generator effect is discussed, where a potential difference is induced in a conductor when it's placed in a magnetic...
Curated Video
Understanding Fleming's Left Hand Rule and the Motor Effect
This is a lecture video on Fleming's left hand rule. The video begins by discussing the magnetic field produced by permanent magnets and how a magnetic field can also be produced by a current carrying wire. The motor effect is also...
Curated Video
Understanding Input and Output Currents in Transformers and Their Practical Applications
The lecture video discusses input and output currents of transformers and how the number of turns of wire on primary and secondary coils affect them. The video explains the definition of electrical power and how it is related to current...
Curated Video
Emission and Absorption of Infrared Radiation: An Experiment on the Effectiveness of Different Surfaces as Emitters of Infrared Radiation
This video is a lecture presentation on the emission and absorption of infrared radiation or IR. The presenter walks the viewer through an experiment to compare the effectiveness of four different surfaces as emitters of infrared...
Curated Video
Step Up and Step Down Transformers: Understanding the Differences
The video explains the differences between step up and step down transformers. It starts with an introduction to the purpose of transformers and the primary and secondary coils. The video then goes on to describe the two types of...
Packt
Introduction to computer hardware and software : Magnetic Disk Drives
From the section: Mass Storage Technologies. In this section, we cover topics related to Mass storage. Hard Disk Drives (HDDs), which store data on rotating magnetic disks, have been the go-to mass storage media for decades. A good tech...
NASA
Understanding the Magnetic Sun
NASA GSFC solar scientist Holly Gilbert explains a computer model of the sun’s magnetic field. Grasping what drives that magnetic system is crucial for understanding the nature of space throughout the solar system: The sun's invisible...
Curated Video
Movimiento
Este programa de video de accion en vivo es sobre la palabra Movimiento. El programa esta disenado para reforzar y apoyar la comprension y retencion por el estudiante de la palabra Movimiento mediante el uso de secuencias de video,...
Visual Learning Systems
Electromagnetism Review
This video reviews the topics covered in the Electromagnetism series. This video provides an overview of the relationship between electric current and magnetism. It covers the creation and uses of electromagnets, the functioning of...
NASA
NASA Explores Earth's Magnetic 'Dent'
Earth’s magnetic field acts like a protective shield around the planet, repelling and trapping charged particles from the Sun. But over South America and the southern Atlantic Ocean, an unusually weak spot in the field – called the South...
Curated Video
I WONDER - How Does A Compass Work?
This video is answering the question of how does a compass work.
Curated Video
Alternators and the Generator Effect: How They Create Alternating Currents
This video discusses how alternators use the generator effect to produce an alternating current. The video explains how this effect can be utilized to generate both alternating and direct currents, and how the direction of the potential...
Rock 'N Learn
Physical Science : Motion And Gravity
Physical Science for Kids is the fun way to learn important facts about physical science and get ready for tests. Take a fascinating journey to the Super Science Station to learn about motion and gravity.
Curated Video
The Colors of Opaque Objects: Understanding Light Interaction with Different Surfaces
This video is a lecture on the colors of opaque objects and how light interacts with different surfaces to define the color of an object. It explains how white light is a combination of all visible colors and that surfaces with color...
Curated Video
Filters and the Absorption of Different Wavelengths of Light
The video is a lecture on filters and how they work. It discusses how white light is a combination of all visible wavelengths and how filters are materials that are transparent and only permit certain wavelengths of light to transmit...
Curated Video
Magnetic Fields Around Current Carrying Wires
This video explains the concept of magnetic fields that form around current carrying wires. It defines magnetic fields and how they are represented by magnetic field lines, which indicate the direction and strength of the magnetic field....
Curated Video
Flemings Left Hand Rule
In this video, we're going to learn the Flemings Left Hand Rule. This rule is important for determining the direction of rotation for a DC motor.
The Backyard Scientist
Molten Iron Vs. HUGE Magnet
Have you ever wondered what happens when you bring a magnet near 5000 degree molten Iron? Does it attract? Or repel? Maybe it create cool shapes. But most importantly... DOES IT EXPLODE?! I set off thermite over a very large and...
NASA
The Solar Wind: A Heliophysics Sea Shanty (The Wellerman parody)
Parodying the classic sea shanty "The Wellerman," “The Solar Wind: A Heliophysics Sea Shanty” illuminates one of the primary connections between the Sun and Earth, the solar wind. The solar wind is a constant outflow of magnetized...
Curated Video
The Effects of Wavelength and Speed on Electromagnetic Waves
This video is a lecture on the effects of wavelength and speed on electromagnetic waves. The speaker explains what can happen to a wave at the boundary between two media, including reflection and refraction. They also discuss how...
Curated Video
CompTIA A+ Certification 220-1001: The Total Course - Magnetic Disk Drives
Hard Disk Drives (HDDs), which store data on rotating magnetic disks, have been the go-to mass storage media for decades. A good tech understands how this venerable media works and understands magnetic media’s unique needs. This clip is...