Why things move the way they do. Nine topics, one idea at the center of all of them: force causes acceleration.
Episode Guide ā Season 2
Before forces make sense, you need to know what point you're actually tracking when something moves.
Every physics problem starts here. Learn to draw every force acting on an object ā nothing more, nothing less.
Every push has an equal push back. The most misunderstood law in physics, finally made clear.
Objects don't want to change how they're moving. That stubbornness has a name: inertia.
The single most important equation in this entire course. Everything else is just plugging into F = ma.
Why everything falls at the same rate, and how weight is just gravity wearing a different name.
The force that ruins every 'frictionless' assumption ā and the one that lets you actually walk.
Push or pull a spring and it pushes back proportionally. One simple law explains an enormous amount of physics.
The season finale. Every earlier idea in this unit comes together to explain why things move in circles.