Physics Calculators (Page 12)
Velocity, mechanics, energy, electricity and physics tools.
Stopping Distance Calculator
Enter speed v and deceleration a to compute braking/stopping distance from d = v²/(2a). Doubling speed quadruples the distance.
Heat Engine Efficiency Calculator
Compute heat-engine efficiency η = W/Q_in.
Gravitational Potential Energy Calculator
Compute gravitational PE U = mgh near Earth's surface.
Electric Potential Calculator
Enter a point charge and distance to compute the electric potential V = k·q/r.
Critical Angle Calculator
Compute the critical angle θ_c = arcsin(n₂/n₁) for total internal reflection.
Banking Angle Calculator
Compute the ideal banking angle θ = arctan(v²/(rg)).
Angular Acceleration Calculator
Compute angular acceleration α = (ω₂ − ω₁)/t.
Diffraction Grating Calculator
Compute the angle of maxima d·sinθ = mλ for a grating.
Acoustic Intensity Calculator
Compute sound intensity from power and area (I = P/A).
Wavelength & Frequency Calculator
Enter wave speed and frequency (or wavelength) to find the other. λ = v/f. Speed of light 3e8 m/s, f=100 MHz → λ=3 m; audible 20 Hz–20 kHz maps to 17 mm–17 m.
Inductive Reactance Calculator
Enter frequency and inductance to compute the inductive reactance X_L = 2π·f·L.
Capacitive Reactance Calculator
Compute capacitive reactance X_C = 1/(2πfC).