SciShow
The 16 Most Asked Questions About Magnets
Magnets - how DO they work? We've got the answer for you, plus a bunch of weird fun magnet facts - where they got their names, why hitting some stuff with a hammer can turn it into magnets, and even why we feed magnets to cows, on purpose.
MinutePhysics
3 Simple Ways to Time Travel (& 3 Complicated Ones)
One Minute Physics provides an energetic and entertaining view of old and new problems in physics -- all in one minute!
Crash Course
Maxwell's Equations: Crash Course Physics
In the early 1800s, Michael Faraday showed us how a changing magnetic field induces an electromotive force, or emf, resulting in an electric current. He also found that electric fields sometimes act like magnetic fields, and developed...
SciShow
Electromagnetism - Magnetic Force: The Four Fundamental Forces of Physics #4b
In this final segment on the four fundamental forces of physics, Hank tackles the magnetic force, the second of the two ways in which electromagnetism is apparent in the universe
Curated Video
Magnetic force
A force acting between magnets or moving electric charges. 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
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
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
What Are Magnets?
What are the properties of magnets, and why are they useful to us? Physics - Electricity And Circuits - Learning Points. A permanent magnet is a piece of metal that possesses a magnetic field. The magnetic field is strongest at the...
Science Buddies
How Does an Electromagnet Work?
You may be familiar with permanent magnets—the kind that hang on a refrigerator. But did you know that other magnets, called electromagnets, can be turned on and off? When turned on, electromagnets act just like permanent magnets, but if...
Curated Video
Magnetism
Dr. Forrester teaches about the two types of magnets and their applications.
Curated Video
GCSE Physics - Electromagnetism #78
In this video we cover: - What electromagnetism is - How it works in wires, coils, solenoids and electromagnets - How to increase the strength of an electromagnet Exam board specific info: AQA - Everything is relevant to your course!...
Curated Video
Magnets and Electricity
Dr. Forrester defines electromagnetism and magnet by identifying the relationship between electricity and magnets and how they come from the same force.
Curated Video
AC Electrical Generator Basics - How electricity is generated
Electrical generator basics. Learn the basic operation of an electrical generator, learn how magnets are used to generate electricity in a coil of wire. We then cover 3 phase three phase electricity and briefly the star configuration in...
Curated Video
How does an Electric Motor work? (DC Motor)
In this video, we'll look at how an electric motor works- specifically, the DC motor. We'll discuss the different parts of the motor, and how they work together to create movement.
Curated Video
Starter Motor Explained - How a car's electric starter motor works
How do Starter motors work?
Curated Video
Using Electromagnets
A video entitled “Using Electromagnets” which discusses why electromagnets are so useful and introduces several examples of how electromagnets are used in everyday life.
Science Buddies
Build an Arduino Mass Driver - Cool Science Project
This video shows how to build a model mass driver, also called a coilgun, controlled by an Arduino. Mass drivers could be used to launch payloads into space with electromagnets instead of chemical rockets. There are many variables you...
Visual Learning Systems
Magnets and Electromagnetism: Summing Up
Upon viewing the Magnets and Electromagnets video series, students will be able to do the following: Define a magnet as a material that attracts iron and materials containing iron. Explain that magnets have a north pole and a south pole...
National Institute of Standards and Technology
Operating Principles of the NIST 4 Watt Balance Source
The watt balance lets researchers determine the mass of an object indirectly by determining two quantities: the strength of the magnetic field, and the current running through a coil of wire.
Visual Learning Systems
Electromagnetism and its Applications
In this video, we explore the fascinating discoveries of Hans Orsted in the mid 1800s regarding electricity and magnetism. We learn how electric current flowing through a wire produces a magnetic field and how the strength of this field...
Physics Girl
Are MRIs safe?
Are there any dangers associated with receiving an MRI and how exactly does an MRI work? Is it safe? Medical imaging, specifically magnetic resonance imaging (MRI), has come so far that we can create high resolution images of the entire...
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...
Curated Video
The Mechanics of Headphones
Headphones work by converting electrical signals into sound waves through the use of an electromagnet and a cone. The diaphragm cone inside the driver assembly vibrates when triggered by an alternating current, creating sound waves that...
Curated Video
What is an Inductor
What is an inductor? In this video we cover the basics of what an inductor is, with examples in a circuit board of what they look like.