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Bozeman Science
Bozeman Science: Ap Physics: Objects & Systems
Paul Andersen explains the differences between a system and an object as it relates to physics. [4:50]
Khan Academy
Khan Academy: Introduction to Physics
An overview of how physics is related to math, the other sciences, and the world around us. [9:29]
PBS
Pbs Learning Media: How Does Your Phone Send Emojis?: Physics Girl
The physics of smartphones is a complicated and amazing mixture of engineering, physics, electronics and computer science. Video (6:03)