Physics Calculators (Page 7)

Velocity, mechanics, energy, electricity and physics tools.

Enter spring constant and displacement to compute the spring force F = −k·x and its elastic potential energy.

Compute the electrostatic force F = kq₁q₂/r² between two charges.

Enter mass and acceleration to compute the net force F = m·a instantly.

Compute Newton's gravitational force F = Gm₁m₂/r².

Enter frequency and wavelength to find wave speed v=f·λ. f=440 Hz, λ=0.78 m → v≈343 m/s (speed of sound in air).

Enter mass, specific heat capacity and temperature change to compute heat Q=m·c·ΔT. 2 kg water (c=4186) +30 K → 251,160 J. Also solves c, m, ΔT.

Enter length and gravity to compute the small-angle pendulum period T = 2π·√(L/g).

Enter work and time (or force and velocity) to compute power P = W/t = F·v.

Compute density ρ = m/V from mass and volume.

Enter force, lever distance and angle to compute torque τ=r·F·sinθ. F=20 N, r=0.5 m, θ=90° → τ=10 N·m; at 30° → 5 N·m.

Compute centripetal force F = mv²/r = mω²r.

Enter force, time, mass and initial velocity to compute impulse and final velocity via J = Δp = F·Δt = m·Δv.