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Physics formulas with clear diagrams, worked examples and SI units
Physics Formulas is a pocket reference for high school and first-year university physics. Every formula is typeset clearly, every symbol is explained with its SI unit, and each topic has worked examples with real numbers and practice questions with tap-to-reveal answers. What the app covers • Units and Constants: SI base and derived units, SI prefixes, unit conversion, vectors, and a table of physical constants using the CODATA 2022 values from NIST • Motion: displacement, velocity, acceleration, constant-acceleration equations, motion graphs, free fall and projectile motion • Newton's Laws and Forces: the three laws, free-body diagrams, weight, normal force, tension, springs, friction and inclined planes • Work, Energy and Power: work, kinetic and potential energy, conservation of energy, power and efficiency • Momentum and Collisions: impulse, conservation of momentum, elastic and inelastic collisions, center of mass • Circular Motion and Gravitation: centripetal force, Newton's law of gravitation, Kepler's laws, orbits and escape speed • Rotation: angular motion, torque, equilibrium, moment of inertia and angular momentum • Oscillations and Waves: simple harmonic motion, pendulums, wave properties, interference and standing waves • Sound: speed of sound, decibels, resonance in pipes, beats and the Doppler effect • Fluids: density, pressure, Pascal's principle, buoyancy, continuity and Bernoulli's equation • Heat and Thermodynamics: temperature scales, thermal expansion, specific and latent heat, heat transfer, ideal gases, kinetic theory, the first and second laws, heat engines and entropy • Electrostatics: Coulomb's law, electric field, electric potential and capacitors • Electric Circuits: current, resistance, Ohm's law, series and parallel resistors, Kirchhoff's rules, RC circuits and alternating current • Magnetism and Induction: magnetic force, fields of currents, Faraday's and Lenz's laws, inductance and transformers • Optics: reflection, refraction, total internal reflection, mirrors, thin lenses, interference and diffraction • Modern Physics: photons and the photoelectric effect, matter waves and uncertainty, the Bohr atom and spectra, nuclear binding energy, radioactive decay and special relativity Made for studying • Clear original diagrams: projectile paths, free-body diagrams, inclined planes, circuits, wave diagrams, lens and mirror ray diagrams, energy levels and more • Every formula with a list of its symbols and SI units • Worked examples and practice questions in every topic • Notes on common mistakes and sign conventions • Search across all topics • Previous and Next buttons to work through a section in order • Dark mode • Works offline, with no account needed • Available in 8 languages: English, Español, Português, Français, Deutsch, العربية, हिन्दी and Bahasa Indonesia Useful for school physics, AP, A-level and IB courses, and introductory college and university physics. Content is checked against the OpenStax physics textbooks and NIST reference data. This app is an independent study aid. It is not affiliated with any exam board, textbook publisher or standards body.