Understand motion, forces, energy, electricity, and pressure with clear, simple formula guides.
Force equals mass times acceleration — the foundation of classical mechanics
Speed equals distance divided by time
Quantity of motion of a moving body — mass times velocity
Energy an object possesses due to its motion
Stored energy due to an object's height above the ground
Mass-energy equivalence — energy equals mass times speed of light squared
Work done equals force applied times the distance moved
Rate at which work is done or energy is transferred