Physics Formulas - Mechanics, Electricity and Magnetism, and Thermodynamics, Exams of Advanced Education

Download Physics Formulas - Mechanics, Electricity and Magnetism, and Thermodynamics and more Exams Advanced Education in PDF only on Docsity! Physics Formulas - Mechanics Kinematics Formulas The Kinematic Equations apply to one-dimmensional motion with costant acceleration from point 1, situated d1 from a point of reference to point 2, situated d2 from the same point of reference. v1 is the velocity at point 1 and v2 is the velocity at point 2. v2 = v1 + a·t d2 = d1 + (v1 + v2)·t/2 d2 = d1 + v1·t + a·t2/2 d2 = d1 + v2·t - a·t2/2 v22 = v12 + 2a(d2 - d1) Average velocity: vav = Δd/Δt Average acceleration: aav = Δv/Δt Rotational kinematics equations with constant angular acceleration: ω2 = ω1 + α·t Φ2 = Φ1 + (ω1 + ω2)·t/2 Φ2 = Φ1 + ω1·t + α·t2/2 Φ2 = Φ1 + ω2·t - α·t2/2 ω22 = ω12 + 2α(Φ2 - Φ1) Average angular velocity: ωav = Δθ/Δt Average angular acceleration: αav = Δω/Δt Frequency: f = ω/2π Period: T = 2π/ω Relations between angular and linear variables: l = Φ·r v = ω·r a = α·r Dynamics Formulas Pressure: P = F/A Newton's Second Law: F = m·a Force of kinetic friction: Ff = μ·N Hooke's Law: F = -k·x Centripetal Force: Fc = m·v2/R Centripetal acceleration: ac = v2/R Work, Energy, Conservation Laws Formulas Work: W = F · d = Fdcos(α) Potential Energy: PE = m·g·h Kinetic Energy: KE = m·v2/2 Mechanical Energy: E = KE + PE Instantaneous Power: P = F·v The Work-Energy Theorem: W = ΔKE Gravitation Formulas Newtonian gravity formula: Fg = G·m·M/R2 Kepler's Third Law: T2/a3 = ct. Physics Formulas - Electricity and Magnetism Electric Fields and Forces Formulas Coulomb's Law: F = k·q1·q1/r2 Electric field of a charge q: E = k·q/r2 Work done by electric field: W = q·E·d Electric field between two metallic plates: E = V/d DC Circuits Formulas Ohm's Law: V = I·R Power dissipated in a resistor: P = I·V = V2/R = R·I2 Resistance: R = ρ·l/A Equivalent resistance of series resistors: Rs = R1 + R2 +... Equivalent resistance of parallel resistors: 1/Rp = 1/R1 + 1/R2 +... Equivalent capacitance of series capacitors: 1/Cs = 1/C1 + 1/C2 +... Equivalent capacitance of parallel capacitors: Cp = C1 + C2 +... Magnetic Fields and Forces Formulas Magnetic force on a moving charge: F = q(v x B) = q·v·B·sin(θ) Magnetic force on a current carrying wire: F = I·l·B·sin(θ) Magnetic field created by a current: B = (μo/2π)·(I/r) Faraday's Law: E = -dΦ/dt Physics Formulas - Thermodynamics