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Bozeman Science
Center of Mass
In this video Paul Andersen explains how the center of mass of an object represents the average position of matter in an object. The center of mass of a system is a combination of all the objects within the system. As long as no...
Curated Video
Predicting Possible Collisions Using Nonlinear Equations
In this video, students learn how to predict possible collisions by writing and solving a system of nonlinear equations using graphs of quadratic equations. The lesson covers the basics of quadratic equations, including circles,...
Khan Academy
Khan Academy: Gravity for Astronauts in Orbit
Why do astronauts appear weightless despite being near the Earth? Sal Khan answers this question in this video. [7:11]
Khan Academy
Khan Academy: Optimal Angle for Projectile Part 1: Components of Initial Velocity
You want a projectile to fly as far as possible, at which angle should you launch it? We'll start with formulas for the initial velocity. [5:49]