PBS
Pbs Kids: Animations: What Is a Series Circuit?
Narrated animation that visually explains how wiring a set of batteries in series increases voltage. (30 secs) Uses Quicktime.
Other
Earth Day Canada: Eco Kids: Recycle Your Batteries
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....
Crash Course
Crash Course Physics #28: Electric Current
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...
Khan Academy
Khan Academy: Batteries: Reverse Electrodes (Polarity)
Video lecture explains what happens to the deflection when we attach the penny and zinc in the opposite direction? [1:23]
Khan Academy
Khan Academy: Batteries: Electrolyte (Temperature Test)
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]
Khan Academy
Khan Academy: Batteries: Electrolyte (Salt Test)
Video lectures explores what happens to the deflection when we add salt to an electrolyte. Why? [1:04]
Khan Academy
Khan Academy: Batteries: Electrode (Distance Test)
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]
Khan Academy
Khan Academy: Batteries: Electrolyte Test (Pure Water vs. Vinegar)
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]
Khan Academy
Khan Academy: Batteries: Electrolyte (Strong Acid Test)
Video lecture explores experimenting with a strong acid as electrolyte and observing the change in deflection compared to weak acid (vinegar). [0:44]
Khan Academy
Khan Academy: Batteries: Standard Cell
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]
Khan Academy
Khan Academy: Batteries: How Much Electrolyte Does a Single Cell Need?
Observation: when we pull our cell out of the electrolyte it still causes a deflection, which increases when pressure is applied. How could this lead to more efficient batteries? [0:40]
Khan Academy
Khan Academy: Batteries: Battery Meter (Galvanometer)
Simple device which we can use to measure our homemade batteries. You can test it with any household battery first. What does this deflection represent? What forces are involved? [0:50]
Khan Academy
Khan Academy: Batteries: Electrode (Surface Area Test)
What's the difference between one piece of metal and three pieces of metal in our cell. Does deflection change? Why? [1:07]
Khan Academy
Khan Academy: Bit Zee Bot: 9. Bit Zee's Batteries
In this video we install the AA batteries in Bit-zee's frame using zip ties. [2:16]
Khan Academy
Khan Academy: Zinc Copper Cell (Reduction Oxidation)
This demonstration shows an example of reduction-oxidation reaction. [1:04]
Khan Academy
Khan Academy: Standard Cell
Watch as we test out a cell that holds the metals at a constant distance in this Khan video. We add it to salt water and then check the deflection. Can this be used as a standard unit? [1:08]
Khan Academy
Khan Academy: Reverse Electrodes (Polarity)
What happens to the deflection when we attach the penny and zinc in the opposite direction? Watch this video to find out. [1:22]
Khan Academy
Khan Academy: Electrode (Distance Test)
Does the distance between the copper and zinc electrodes matter? What happens to the deflection when we hold them close vs. far apart? Watch this visual demonstration to answer these questions. [1:05]
Khan Academy
Khan Academy: Electrolyte Test (Pure Water vs. Vinegar)
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? Watch this visual demonstration to answer this question. [1:22]
Khan Academy
Khan Academy: Electrolyte (Strong Acid Test)
This visual demonstration shows an experiment with a strong acid as an electrolyte and observing the change in deflection compared to weak acid (vinegar). [0:43]
Khan Academy
Khan Academy: Electrolyte (Temperature Test)
Watch as we experiment with hot vs. cold vinegar as our electrolyte. Does the deflection in our galvanometer depend on temperature? [1:36]
Khan Academy
Khan Academy: Electrode (Surface Area Test)
What's the difference between one piece of metal and three pieces of metal in our cell. Does deflection change? Watch this visual demonstration to answer these questions. [1:07]
Science Friday Initiative
Science Friday: Building a Better Battery
Scientists say a modification to the design of lithium-ion batteries could allow batteries that can charge and discharge in a matter of seconds.