Create movement with some wire and a magnet! The video instructor demonstrates how to use electromagnetic induction to power a miniature train. Using the installment of a physics playlist, youth learn the science behind the process.

Be sure to charge your phones so you can view the resource. An informative YouTube video in the ACS Reactions playlist describes how lithium-ion batteries work. It also gives three tips for how to make cell phone batteries last longer.

Your cell phone contains many elements you may not have even heard of! Explore the science of the smartphone with a lesson from the Reactions playlist. The instructor explains the location and purpose of the many different elements that...

Some old technology gets new life. Scholars learn how Tesla is planning to produce electric cars with batteries in a Real Engineering video. They see calculations that show how many lithium-ion battery factories would be necessary to...

All circuits are not created equal! Building on the previous lessons in the Crash Course series, the 29th lesson explains how electric current flows through a circuit. It spends equal time discussing both series and parallel circuits.

Do we really think about overall energy used when we watch that funny video for the fourth time? It adds up! Pupils watch as the energy used for Internet tasks is related to an equal number of AA batteries. The narrator compares watching...

Not all electricity is created equal. A detailed video explains how to measure the strength of electricity using a voltmeter. The 31st installment of the 35-part series uses a demonstration to explain the process of measuring current and...

Something in your refrigerator—something you can eat—can turn chemical energy into electrical energy! Here is an intriguing video that shows how to make a lemon battery. With simple supplies, the narrator makes the battery and then...

What do you create with the electrolysis of water — and why? Answer this question and others with the in-depth video perfect for learners new to the concept. The instructor explains the significance of the positive and negative electrode...

Why do we recycle industrial waste? Zubera, a chemical engineer helps find ways to recover precious metals from industrial waste so the United States can decrease its reliance on other countries for the metals. Learners discover her...

Discover the fascinating technology that allows us to move around in our daily lives without being anchored to power cables. Learners trace the history of batteries and their ability to store charge back to the 1780s, and...

A sleepy-sounding narrator explains how batteries and circuits work. Simple computer animations display the movement of electrons through parallel and series circuits. Since the narrator speaks slowly and clearly, and the animations are...

Can a fresh lemon power a digital clock? In this video segment adapted from ZOOM, the cast shows you how this can be done and, in the process, discover how kids can be a part of an electric circuit. [5:05]

This animated essay from "American Experience" explains the difference between alternating and direct electric current and offers in-depth explanations about the role played by a battery, light bulb, wire, and generator. [2:27]

Narrated animation that visually explains how wiring a set of batteries in series increases voltage. (30 secs) Uses Quicktime.

We use a lot of batteries every year - but when batteries are not disposed of correctly, the hazardous materials inside of them can get into the water, land and air. Learn here all about batteries and the importance of battery recycling....

So, electric current works like a river, kinda. Instead of flowing based on elevation, electric current works a little differently. But it's a good metaphor. In this video episode of Crash Course Physics, Shini talks to us about electric...

Video lecture explains what happens to the deflection when we attach the penny and zinc in the opposite direction? [1:23]

Here we experiment with hot vs. cold vinegar as our electrolyte. Does the deflection in our galvanometer depend on temperature? Why? Watch this video lecture to find out. [1:37]

Video lectures explores what happens to the deflection when we add salt to an electrolyte. Why? [1:04]

Does the distance between the copper and zinc electrodes matter? What happens to the deflection when we hold them close vs. far apart? Why is there a difference? Watch this video lecture to find out. [1:06]

First we attach our galvanometer to a piece of copper and zinc. Then we submerge the metals in pure water and vinegar. What is the difference? Why? Watch this video lecture to find out. [1:23]

Video lecture explores experimenting with a strong acid as electrolyte and observing the change in deflection compared to weak acid (vinegar). [0:44]

Video lecture shows testing out a cell which holds the metals at a constant distance. We add it to salt water and then check the deflection. Can this be used as a standard unit? [1:09]