# AP Physics C - Momentum

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"Momentum" is a quantity that Newton originally referred to as a "quantity of motion"--a measure of an object's mass *and* velocity. In fact, Newton's Second Law wasn't stated in terms of a force's effect on accelerating a mass, but rather a force's effect on an object's momentum.

## Conservation of Momentum Video Lessons

Conservation of Momentum (Mechanical Universe, Episode 15)

Center of Mass (Monterey)
Impulse and Momentum (Monterey)
Conservation of Linear Momentum, Collisions (Monterey)
## Multiple-Choice Practice Problems

Scroll down to see multiple choice practice problems in Impulse, Momentum, Conservation of Momentum, and Center of Mass.