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.
PBS
Pbs: Nova Labs: Toward a Smarter Grid
Find out how the U.S. power grid has grown and changed since its start during the late 1800s. [2:56]
Bozeman Science
Bozeman Science: Ap Physics: Positive & Negative Charge
Mr. Andersen illustrates and explains how all objects contain positive and negative charge. [5:24]
Khan Academy
Khan Academy: Bit Zee Bot: 19. Bit Zee's 5 Volt Power Distribution Board
In this video we hack apart a bread board to create a 5 volt power distribution strip. The 5 volts comes from the center pin in the motor controller and the negative or ground comes from the ground pin on the motor controller. [5:23]
PBS
Pbs Learning Media: Atoms: The Space Between
This video segment adapted from A Science Odyssey takes a look at the scale of the atom and the tremendous amount of space between the electrons and the nucleus. If all this empty space exists in matter, how can any substance be solid?...
Khan Academy
Khan Academy: Analyzing a Resistor Circuit With Two Batteries
An example of simplifying a seemingly complicated resistor circuit. [9:44]
Khan Academy
Khan Academy: Question 2 Ab: 2015 Ap Physics 1 Free Response
See a worked example of question 2ab: 2015 AP Physics 1 free response.