Physics AI Solver
Solve physics problems online with AI. Work through formulas, units, kinematics, energy, and mechanics step by step.
Preview
What Can This Tool Solve?
Keptune's Physics AI solves quantitative physics problems step by step — identifying the relevant laws, setting up equations, and working through to the final answer with units. Describe the scenario in plain English or paste the problem directly.
Supported topics:
- Mechanics — kinematics, Newton's laws, friction, circular motion, work, energy, power, momentum, collisions
- Rotational motion — torque, angular velocity, moment of inertia, rotational kinetic energy
- Oscillations and waves — simple harmonic motion, springs, pendulums, wave speed, frequency, superposition
- Thermodynamics — ideal gas law, heat transfer, first and second laws, Carnot efficiency, entropy
- Electricity and magnetism — Coulomb's law, electric fields and potential, capacitors, Ohm's law, circuits (series/parallel), magnetic force, Faraday's law
- Optics — reflection, refraction, Snell's law, lenses, mirrors, diffraction
- Modern physics — special relativity, photoelectric effect, de Broglie wavelength, radioactive decay
- Fluid mechanics — pressure, buoyancy, Bernoulli's equation, continuity
Example Problems
| Topic | Example |
|---|---|
| Kinematics | A ball is thrown upward at 20 m/s. How high does it go and when does it land? |
| Newton's laws | A 5 kg block is pushed with 30 N on a surface with μ=0.3. Find the acceleration. |
| Energy | A 2 kg mass falls from 10 m. What is its speed just before hitting the ground? |
| Simple harmonic motion | A spring with k=400 N/m holds a 2 kg mass. Find the period and maximum speed if displaced 0.15 m. |
| Circuits | Two resistors of 4Ω and 6Ω are connected in parallel across a 12V battery. Find the total current. |
| Optics | A ray enters glass (n=1.5) at 30° from normal. Find the refraction angle. |
| Thermodynamics | 2 moles of ideal gas expand isothermally at 300 K from 1L to 5L. Find the work done. |
Tips for Best Results
- Include all given values with units — e.g. "mass = 2.5 kg, spring constant = 400 N/m"
- State what you are solving for — e.g. "find the angular frequency and period"
- Specify the scenario clearly — mention if surfaces are frictionless, if gravity should be 9.8 or 10 m/s², or if air resistance is neglected
- Multi-part problems — paste the full problem; the AI answers each part in order
Frequently Asked Questions
Does it show the working or just the answer? It always shows full working — which physical law applies, how equations are set up, each algebraic step, and the final numerical answer with units.
What unit system does it use? SI units (meters, kilograms, seconds, newtons) by default. If your problem uses other units (e.g. cm, miles, pounds), mention it and the AI will convert or work in those units.
Can it handle multi-body problems? Yes — problems with two or more objects interacting (collisions, Atwood machines, connected blocks) are supported.
Can it check my solution? Yes — paste your attempted solution and ask "is this correct?" or "where did I go wrong?".