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Circuit Playground: B Is for Battery

7 minutes 2 seconds

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Ladyada and Adabot explain the electrochemical reactions that take place in batteries. After discussing how batteries work, they build a battery out of lemons. Part of the "Circuit Playground" series.

Media Details

Runtime: 7 minutes 2 seconds

Measurement device placed on a circuit powered by three AA batteries. Device shows 0.05 on the display. Caption: (Adabot) zero point zero five amperes.
Circuit Playground
Episode 1
3 minutes 49 seconds
Grade Level: 5 - 8
Person speaking. Illustration of a battery. Caption: A battery uses chemistry to create electricity.
Circuit Playground
Episode 2
7 minutes 2 seconds
Grade Level: 5 - 8
Illustration of a circuit board with a tubular object bridging two paths. Caption: In this circuit, I'm filtering power.
Circuit Playground
Episode 3
6 minutes 47 seconds
Grade Level: 5 - 8
Rectangular diagram with objects moving clockwise around the perimeter. Caption: Electrons flow through the diode in one direction,
Circuit Playground
Episode 4
2 minutes 34 seconds
Grade Level: 5 - 8
Machine labelled DS1052E Digital Oscilloscope with a wavy line across the screen and complex controls. Caption: We measure frequency in units called hertz.
Circuit Playground
Episode 5
5 minutes 12 seconds
Grade Level: 5 - 8
Person in a workshop holding a power cord with three prongs. Caption: The answer is these three-prong cables are grounded.
Circuit Playground
Episode 6
2 minutes 52 seconds
Grade Level: 5 - 8
Person and a robot in a workshop with a laptop in front of them. Caption: Hertz is how many times something happens per second.
Circuit Playground
Episode 7
3 minutes 42 seconds
Grade Level: 5 - 8
Closeup of a complex circuit board with capacitors and other structures. Caption: But ICs, well -- ICs can have lots of connections.
Circuit Playground
Episode 8
3 minutes 39 seconds
Grade Level: 5 - 8
Joules = force x distance. Caption: we multiply force and distance
Circuit Playground
Episode 9
3 minutes 59 seconds
Grade Level: 5 - 8
Person and a robot standing in front of shelves full of boxes. Caption: Kits? What's a kit?
Circuit Playground
Episode 10
5 minutes 3 seconds
Grade Level: 5 - 8