Physics Formula Sheet — Interactive Reference
Search, filter, and copy 30+ essential physics formulas across mechanics, waves, electricity, optics, thermodynamics, and nuclear physics. Click any formula to copy it instantly. Everything runs in your browser — free and private.
Essential Physics Formulas Every Student Needs
Physics is built on a foundation of core equations that describe how the universe works. From Newton's laws of motion to Maxwell's equations of electromagnetism, these formulas are the language of physical science. This interactive physics formula sheet covers the most important equations taught in high school and introductory university physics courses.
Whether you are studying for GCSE, A-Level, AP Physics, IB, or a university exam, having quick access to the right formula can save valuable time. Each formula includes variable definitions so you know exactly what each symbol represents and which units to use. The formulas span six major branches: mechanics, waves, electricity, optics, thermodynamics, and nuclear physics.
How to Use This Physics Formula Sheet
Use the search bar at the top to find any formula by name or keyword. For example, typing "energy" shows all energy-related formulas across categories. You can also use the category filter buttons to narrow results to a specific branch of physics. Click the copy button on any formula card to copy the equation text to your clipboard — perfect for pasting into homework, notes, or revision documents.
This formula sheet is designed as a quick-reference tool, not a textbook replacement. Each card shows the formula name, the equation, and a breakdown of all variables with their SI units. Bookmark this page for instant access during study sessions. All data stays in your browser — nothing is uploaded or tracked.
Physics Formula Categories Explained
Mechanics covers forces, motion, energy, and momentum — the foundation of classical physics. Waves includes wave speed, frequency, period, and refraction. Electricity spans Ohm's law, power, circuits, and Coulomb's force. Optics deals with lenses, mirrors, and magnification. Thermodynamics covers heat transfer, gas laws, and efficiency. Nuclear physics includes mass-energy equivalence, radioactive decay, and decay constants.
Understanding which category a formula belongs to helps you organise your revision and quickly locate the right equation during exams. Many physics problems require combining formulas from different categories — for example, calculating the electrical energy consumed by a resistor involves both electricity and energy equations.
Study Tips for Memorising Physics Formulas
The best way to memorise physics formulas is through active practice, not passive reading. Solve problems using each formula repeatedly until the equation becomes second nature. Create flashcards with the formula on one side and a sample problem on the other. Group related formulas together — for example, the three SUVAT equations all describe motion under constant acceleration.
Focus on understanding the physics behind each formula rather than rote memorisation. If you understand that kinetic energy depends on mass and the square of velocity, you will naturally remember KE = ½mv². Use dimensional analysis to verify your formulas — if the units do not match, the formula is wrong. This sheet gives you the variable units for every equation to help with that check.