MinutePhysics
Do We Expand With the Universe?
The cat's out of the bag (or off the leash, in this case) regarding the expansion of the universe. In this intriguing episode, the narrator explains that space is expanding, not the objects within it. He also tells how expansion...
MinutePhysics
MAGNETS: How Do They Work?
Let this video teach the basics of magnetism for you in a flipped classroom scenario. In a six-and-a-half minute feature, physics fans find out about the intrinsic properties of magnetism and its relation to electricity.
Curated OER
How to Build a Simple Electric Motor, Plus How it Works
When electric current moves through a magnetic field, a force is created that can actually power a motor. Learn how to build a simple electromagnetic motor by watching this colorful and upbeat video. This episode is the third in a series...
Khan Academy
Four Fundamental Forces, Scale of the Universe, Cosmology and Astronomy
Fundamental interactions are the non-contact ways that elementary particles interact. Sal describes electromagnetism, strong interaction, and weak interaction as being mediated by the exchange of gauge bosons between particles.
Curated OER
Electromagnets - How Can Electricity Create a Magnet?
If you wrap wire around a screw and run an electric current through it, you create an electromagnet. What once had no magnetic pull is then able to pick up other metal materials. Marshall Brain demonstrates this for the camera in the...
Curated OER
Electromagnetism 4: The Motor Principle
Did you know that electromagnetism can propel a motor? When electric current passes through a conductor in a magnetic field, a force is created which can be used to turn a motor. Cartoon animation and diagrams show you how! The video is...