Bozeman Science
Bozeman Science: Electromagnetic Induction
The following video narrated by Paul Anderson explains how electromagnetic induction occurs when the magnetic flux of an object changes. The magnetic flux is product of the surface area perpendicular to the magnetic field and the...
Bozeman Science
Bozeman Science: Electromagnetic Waves
In the following video Paul Andersen details the characteristics of electromagnetic waves. Electromagnetic waves are transverse waves that can move through both mediums and vacuums. The electric and magnetic fields oscillate...
Crash Course
Crash Course Astronomy #10: The Sun
Take a closer look at the two-octillion ton star that rules the solar system. Also, look at the sun's core, plasma, magnetic fields, sunspots, solar flares, coronal mass ejections, and what all of that means for Earth.
Khan Academy
Khan Academy: Electricity and Magnetism: Magnetism 8
A continued discussion of the magnetic forces that two current-carrying wires exert on each other.
Khan Academy
Khan Academy: Increase Strength of Magnet
How can we increase the strength of a bar magnet using a piece of steel? Why is it stronger? Find out here.
Khan Academy
Khan Academy: Electricity and Magnetism: Magnetism 2
Video lecture explores magnetic fields and their effects on moving electrical charges. [8:59]
Derek Owens
Physical Science: Electric Current and Magnetic Fields
An introduction to the magnetic fields caused by current flow through a wire. [10:01]
Khan Academy
Khan Academy: Electricity and Magnetism: Magnetism 4
Part 2 of a problem that explores what happens to a proton speeding through a magnetic field.
Khan Academy
Khan Academy: Magnetic Permeability
This video demonstrates what happens to the magnetic field of a magnet in the presence of another material which is attracted to it. [2:02]
Khan Academy
Khan Academy: Lenz's Law
A video discussing Lenz's law and how the magnetic field can be induced by a current. [5:45]
Khan Academy
Khan Academy: Magnetic Force on a Charge
Learn how to use the right hand rule and F=qvB to find the size and direction of magnetic force. [8:59]
Khan Academy
Khan Academy: Magnetic Force Between Two Currents Going in Opposite Directions
Learn how to solve problems to determine the magnetic force between two currents going in opposite directions. [11:01]
Khan Academy
Khan Academy: Faraday's Law Introduction
How a current can be induced in a loop of wire by a change in magnetic flux? This video introduces students to Faraday's Law. [5:37]
Khan Academy
Khan Academy: Faraday's Law for Generating Electricity
Learn how Faraday's Law is used to generate electricity in turbines in this video. Explore how induced current can be used for an electro-motive force. [5:37]
Khan Academy
Khan Academy: Faraday's Law Example
A video investigating how to use Faraday's Law. See how to do an example of how to calculate induced current based on change in flux. [9:30]
Khan Academy
Khan Academy: Magnetic Field Created by a Current Carrying Wire
Watch how a wire carrying a current creates a magnetic field. [9:42]
Science Friday Initiative
Science Friday: The Poles, They Are a Changin'
A Florida airport recently had to close its main runway to repaint directional signs, due to the changing location of magnetic north. We'll talk about the planet's magnetic field.
Science Friday Initiative
Science Friday: Looking at Magnetic Fields in a Distant Galaxy
We'll talk with one of the scientists behind a project that used a radio telescope to peer back millions of years in time and make observations of the magnetic field present in a distant proto-galaxy.
Khan Academy
Khan Academy: Are Two Magnets Stronger Than One?
A brief experiment that looks at whether the power of two magnets stuck together will increase the overall force.
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Magnetic Permeability
What happens to the magnetic field of a magnet in the presence of another material which is attracted to it? Why does this happen? [2:03]
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Tracing a Magnetic Field
A compass will align with the lines of force around a magnet. How could you do this in three dimensions? [0:29]
Khan Academy
Khan Academy: Discovery of Magnetic Fields
Magnetic materials seem to have two sides (we could call them poles). Depending on orientation, they can be attractive or repulsive. What is the shape of the force between fields? [1:07]
Khan Academy
Khan Academy: Discovery of Magnetic Fields: Magnet Near Compass
An experiment exploring the effect of a permanent magnet on a compass. What is going on? [1:05]