Physical Formulas

We made an effort to compile all of the physics equations and formulas needed to solve numerical problems in this app. All facets of mechanics, thermal physics, electrostatics, current electricity, magnetism, ray optics, wave optics, and modern physics are covered. This app is very helpful for kids in classes 11 and 12, freshmen, and seniors, as well as for those preparing for competitive exams. The teachers who teach physics will find this program to be really helpful. The App covers topics: 1. Mechanics: Dynamics: Straight line motion, constant acceleration straight line motion, distance function, uniform circular motion, centripetal force, constant acceleration circular motion, acceleration, free falling form height h, vertical projectile motion, motion equation and velocity equation, …. Forces: Attractive force, gravitational force, gravitational acceleration, force gravity, newton’s first law, newton’s second law, newton’s third law, … Statics: Moment of a force, moment application, moment of inertia, angular momentum Conservation laws: momentum of force, law of conservation of momentum, plastic collision, one- dimensional elastic collision Work and energy: work, examples, power, kinetic energy, kenetic energy of a massive rotating body, work-energy principle, potential energy, conservation of mechanical energy, conservation of energy Mechanics of fluids: Density, pressure, pressure of liquids, pascal’s principle, application, archimedes’ principle, flow rate, 2. Electricity Electrostatics: Coulomb’s law, electric fields, the principle of superposition for electric fields, work of electric force, electric potential difference, relation between E and U, capacitance, … Direct current: Electric current, Ohms law, work created by a current (joule’s law), electrical power, resistance, series circuits, parallel circuits, work of heat energy produced by a resistor, power consumption of a resistor, … Magnetism: magnetic flux through the open surface S, magnetic force on moving charges, force on a current- carrying wire, force between 2 parallel current- carrying wires, magnetic field of a long current- charge wire, magnetic field of a loop, … Alternating current: Basic parameters, effective current and voltage, ohm’s law of AC current containing only resistance R, containing only inductor L, Containing only capacitor C, Containing R, L and C in a series, phase angle,… 3. Thermal Gas laws: Kelvin temperature, equation of state, ideal gas law, Boyle’s law for pressure, Gay- Lussac’s law of pressure temperature, Charles’s law of volumes Changes of state and shape: heat, Fusion (Freezing or solidification), vaporization, linear expansion, volume expansion, area expansion, change of density (volumetric mass density),… Thermodynamics: the first law of thermodynamics, application of first law to ideal gas laws, the second law of thermodynamics 4. Periodic motion: Simple harmonic motion: spring, springs in series, springs in parallel, simple pendulum, motion equations, energy, change of period following the change of the temperature, … Periodic motion: wavelength, function of wave at some point, wave interference Sound waves: sound speed, sound intensity level, the Doppler effect, sound speed in gases, 5. Optics Geometric optics: laws of reflection, refractive index, law of refraction, total refection phenomenon, prism, thin lens, magnification factor, power of the lens Quantum of the light: Photon energy, condition to have photoelectric effect, Einstein’s equation about photoelectric effect. 6. Atomic physics: Theory of relativity: mass energy equivalence, length contraction, relativistic mass, time dilation Atomic nucleus: Nuclear makeup, Nuclear reaction, radioactive decay, amount of radioactivity