Physics
Force, energy, motion, Ohm · 25 calculators
25 calculators
Force (F = ma)
Newton's 2nd law
OpenNewton's 2nd (solver)
Solve for any of F, m, a
OpenWeight (mg)
On Earth / Moon / Mars
OpenKinetic Energy
½·m·v²
OpenPotential Energy
m·g·h
OpenWork (F·d·cos θ)
Work done
OpenPower (W/t)
Power
OpenMomentum
p = m·v
OpenImpulse
J = F·t
OpenVelocity (v = u + at)
Kinematics
OpenAcceleration
Δv / t
OpenFree Fall
Time + impact velocity
OpenProjectile Motion
Range, height, flight
OpenFriction Coefficient
μ = F/N
OpenPressure
F / A
OpenDensity
m / V
OpenBuoyancy
ρ·V·g
OpenOhm's Law
V, I, R + P
OpenElectrical Power
P = V·I
OpenResistor Network
Series / parallel
OpenCapacitor Network
Series / parallel
OpenWave Equation
λ = v/f
OpenDoppler Effect
Frequency shift
OpenPendulum Period
2π·√(L/g)
OpenHooke's Law (spring)
F = k·x
Open
Frequently asked about the Physics
What physics topics are covered?
25 calculators: Newton's 2nd law (F = ma + solvers), weight on different planets, kinetic and potential energy, work, power, momentum, impulse, kinematics (v = u + at, free fall, projectile motion), friction coefficient, pressure (F/A), density, buoyancy, Ohm's law (V, I, R, P), resistor/capacitor networks (series + parallel), wave equation, Doppler effect, pendulum period, and Hooke's spring law.
Is this for high-school physics?
Mostly yes — covers Class 9-12 (ICSE / CBSE) and AP Physics 1/2 topics. Each calculator shows the formula so you can verify against your textbook.
Why isn't relativity / quantum here?
We focus on classical mechanics + basic electromagnetism, which cover school + undergraduate engineering needs. Relativity and quantum involve too many edge cases for a single-input form. Use Wolfram Alpha for those.
Free fall and projectile — what assumptions?
Vacuum (no air resistance). Constant gravity g = 9.81 m/s². For real-world fall (with drag), values are 10-20% off depending on object shape and altitude. Use only as an idealised first estimate.
Does the resistor calculator support both series and parallel?
Yes — paste resistor values, toggle the configuration. Same for capacitors (rules are flipped: series adds reciprocals, parallel adds directly).
What's the Doppler effect calculator for?
Computes the observed frequency when source and/or observer is moving. Useful for school physics problems and basic radar / ultrasound theory.