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Physics AI Solver with units shown

Type a mechanics, electricity or waves problem, or snap the worksheet. The tutor lists what you know, names the law it uses and carries units through every line to the answer.

Photo of the question
Optional · PNG, JPG or WebP up to 5 MB — choose, drop or paste a screenshot
Fill in the required fields to start.

Result

Your result will appear here.

What a physics answer looks like here

  • Knowns, unknowns and units

    Before any algebra, the given quantities are listed with their units next to the one you are solving for, so nothing from the question gets lost.

  • The law named first

    Newton's laws, energy or momentum conservation, kinematics, Ohm's law or wave relations — whichever fits is written as a formula before numbers go in.

  • Readable formulas

    Equations appear as proper math notation, units ride along on each line, and the result keeps sensible significant figures.

  • Diagrams in words

    Free-body diagrams and circuits are described force by force or component by component, because the solver writes text and cannot draw.

From problem to checked answer

  1. Enter the problem

    Type it, paste it, or add a PNG, JPG or WebP photo up to 5 MB. A photo is transcribed first, and anything blurry is flagged instead of guessed.

  2. Set level and style

    Pick elementary through college, then choose how it is explained: patient tutor, simple words, an analogy, exam revision or guiding questions.

  3. Follow the reasoning

    Read what the question asks, the approach, each numbered step and the one-line answer, written in the language of this page.

  4. Test yourself

    Use the suggested check, such as a units test or a limiting case, then try the practice problem. Ask a follow-up to keep going in AI Chat.

How to set up a physics problem by hand

Start by sorting the question into knowns and unknowns. For the incline example in the box above: m = 2 kg, h = 1.5 m, the slope is 30°, there is no friction, and the unknown is the speed v at the bottom. Writing these down with units shows at a glance which quantities you have and which law could connect them.

Next, choose the principle before touching a calculator. With no friction, mechanical energy is conserved, so mgh = ½mv². The mass cancels, leaving v = √(2gh) = √(2 × 9.8 m/s² × 1.5 m) ≈ 5.4 m/s. Notice that the 30° angle never enters: on a frictionless slope only the height drop sets the final speed, although the angle would matter if you were asked how long the slide takes.

Finally, check the result. The units reduce to √(m²/s²) = m/s, which is a speed, and about 5.4 m/s is roughly a fast running pace — believable for a 1.5 m drop. Keep two significant figures, because the height and g are given to two. For the arithmetic itself, the free scientific calculator works right in your browser.

Problems it handles well

  • Kinematics and forces

    Projectiles, inclines, pulleys, friction and circular motion, with each force resolved into components.

  • Energy and momentum

    Work, power, collisions and impulse, including when conservation of energy beats conservation of momentum and when it does not.

  • Electricity and circuits

    Series and parallel resistors, Ohm's law, electrical power and simple capacitor questions.

  • Waves, optics and heat

    Wave speed and frequency, refraction with Snell's law, specific heat capacity and phase changes.

Frequently asked questions

Yes. Choose, drop or paste a PNG, JPG or WebP image up to 5 MB. The question is transcribed before solving, and any number or label that cannot be read clearly is flagged so you can retype it.

No, it cannot produce drawings. It describes the diagram instead — each force, its direction and where it acts — which you can sketch yourself in under a minute.

It only knows what you type or photograph, never your actual apparatus. Paste your measured values and it can show how to find a gradient or an uncertainty, but the lab write-up is yours to do. Follow your course rules on AI help; see Academic Integrity.

It is included in the Pro plans* (*fair use: up to 300 runs a day across the writing, study and code tools). Without a plan, a typed question costs 2 credits and one with a photo costs 3. Signed out, you can preview the opening of an answer for free.

Not always — AI can slip on an arithmetic step or a sign. Check each line, especially the units, and compare the result with a rough estimate before relying on it.

Explanations are written in the language of the page you are using, so switch the site language if you want them in another one.

Tools that pair well with physics

Stuck on a physics problem?

List the knowns, name the law, keep the units — see it done once, then solve the practice question on your own.

Solve my physics problem
  • Mechanics to electricity
  • Photo or typed problems
  • Units carried on every line