Physics C: Mechanics · Unit 1: Kinematics · 5 min read · Updated 2026-05-11
Kinematics Overview — AP Physics C: Mechanics
AP Physics C: Mechanics · Unit 1: Kinematics · 5 min read
1. Unit at a Glance
Kinematics is the study of how objects move, and it builds the vocabulary you will use for every other unit in mechanics, from forces to energy to rotation. We start with motion along a single straight line to master core definitions and calculus relationships, then extend these same concepts to motion in two dimensions, including projectile motion, the most common 2D problem tested on the AP exam.
Common Pitfalls
Why: Sign depends on your chosen coordinate system, not the direction of motion.
Why: The only acceleration in ideal projectile motion is vertical gravity; horizontal acceleration is always zero.