Physics Equations Sheet: Kinematics, Forces & Energy
Find the exact kinematics, dynamics, energy, or electricity equation you need based on which variable is missing in your physics problem.
High-Yield Formulas
When to use: Constant acceleration problems when displacement Δx is not given or asked.
When to use: Finding projectile drop height, flight time, or horizontal/vertical position.
When to use: When time t is neither given nor requested (stopping distance, max height).
When to use: Free-body diagram force balances on flat surfaces, inclines, and pulleys.
When to use: Roller coasters, pendulums, and ramps where speed changes with height.
When to use: Series and parallel resistor circuits.
Practice These Formulas
Generate a free 5-question practice quiz on these exact equations or walk through homework problems step by step.
Frequently Asked Questions
How do I pick the right kinematics equation on a physics test?
List the 5 kinematic variables (Δx, v₀, v, a, t). Identify which 3 are known, which 1 you want to find, and which 1 is not mentioned—each kinematic equation omits exactly one variable.