Mechanics

Kinematics

Describe motion: position, velocity, acceleration

4 skills · Complete topic free in the app

Kinematics describes motion without asking what caused it. Practice uniform motion, constant acceleration, free fall, and projectile motion, including unit conversion and velocity-time graphs.

Skills in this topic

Uniform Motion
Relate distance, speed, and time at constant velocity, and convert km/h to m/s
Uniform Acceleration
Use the constant-acceleration equations and read velocity-time graphs
Free Fall
Drop and throw objects under gravity: fall time, impact speed, maximum height
Projectile Motion
Split a launch into horizontal and vertical motion to find flight time and range

Guides

Understanding Kinematics Intuitively (Motion Without the Cause)

Kinematics is the art of describing motion before asking what pushed it. Position, velocity, acceleration, free fall, and projectiles, without memorizing a wall of formulas.

How to Study Physics Effectively (The Solving Loop)

Physics is not a wall of formulas. See a situation, choose a model, solve, check, and only then open the theory. A practice loop that actually transfers to the next problem.

Getting Started with Physics Zen

Kinematics is free end to end. Other topics leave their last skill for Premium. Both exam paths are Premium after one free lesson. Here is how the app is actually put together.

How to Prepare for AP Physics 1: A Study Plan for the Current Course

AP Physics 1 is now an eight-unit mechanics course. What the exam tests after the Fall 2024 revision, what it no longer covers, and a practice plan that matches the current paper.