# A physics tutor: that checks your units

Source: https://tutix.ai/subjects/physics  
Updated: 2026-10-21

**The short answer.** Tutix teaches physics live: the AI tutor explains a concept, works the equation with you on a shared whiteboard and reads your calculation as you write it. A ready-made program covers IGCSE Physics, Core and Extended, and any other course can be taught from your own notes.

- Live, spoken, one-to-one
- Your working is read while you are in class
- 1 ready-made program
- Free plan: 45 live minutes a month

## How a physics class works

A Tutix class is a live, spoken lesson one-to-one with an AI tutor. For physics:

- Concept, then equation. You say what is happening before you reach for a formula.
- Equation, substitution, answer, unit. The order marks are awarded in, practiced until it is a habit.
- Graphs and diagrams. Lessons carry the pictures and graphs a course uses, and you are asked what they show.
- Calculations read line by line, so a slip is found at the step where it happened.

A class, opened. A sample written to show how a class sounds (not a real learner); the scores show how the exam would credit each answer.

> **Forces · Newton's second law.** Question: A resultant force of 12 N acts on a 3 kg trolley. What is its acceleration?
> The student wrote: 36 m/s^2 (the exam would credit 0 of 2)
> The tutor: F = ma, so a = F ÷ m. Check the units: N divided by kg is m/s^2, and multiplying them would give a different unit.
> The student then wrote: a = 12 ÷ 3 = 4 m/s^2 (the exam would credit 2 of 2)

## Programs that teach it

Each program is taught unit by unit as 15-minute lessons, at five levels from a quick review to the deepest level.

| Program | Curriculum | Units | Topics | Standard (hours) |
| --- | --- | --- | --- | --- |
| IGCSE Physics | IGCSE | 6 | 38 | 18.2 |

Every program that teaches physics sits beside the others, to one hours scale, on the Programs page.

## What the programs cover

The units of each ready-made physics program, as the course itself divides them.

### IGCSE Physics

- Motion, forces and energy
- Thermal physics
- Waves
- Electricity and magnetism
- Nuclear physics
- Space physics

Planned: AP Physics 1, AP Physics 2, AP Physics C: Mechanics and A Level Physics. Until a ready-made program exists you can start a class on any of them from your own notes, and see every program, including those coming soon.

## What the tutor watches for

The mistakes below cost marks most often in physics. A tutor that knows them can catch them at the step where they happen.

- Confusing distance with displacement, or speed with velocity.
- Reading a graph's height when the question needs its gradient.
- Multiplying when the equation divides: check the units of the answer.
- Giving an answer with no unit, or in the wrong one.
- Saying the temperature keeps rising during a change of state, when the energy is going into changing the state.

## What it costs

You can start on the Free plan: 45 live class minutes a month (about one class of the default length), no card needed. Pro is $15 a month for 6 hours of live class time, and Pro+ is $30 for 15 hours.

| Plan | Price | Live class time a month | Works out to | Note |
| --- | --- | --- | --- | --- |
| Free | $0 | 45 min | about one class | No card needed |
| Pro | $15 a month | 360 min (6 hours) | $2.50 an hour | $150 a year if paid yearly |
| Pro+ | $30 a month | 900 min (15 hours) | $2 an hour | $300 a year if paid yearly |
| Pico | No monthly fee | Pay as you go | $3 an hour ($0.05 a minute) | Paid from a wallet you top up |

The hourly figure is the plan's price divided by the live class hours it includes, when you use them all. Live class time is the tutor teaching you; other limits (study items, messages, uploads) are on the pricing page.

## Questions

**Can an AI tutor teach physics?**

Yes for the concepts and calculations a course asks for. It cannot sit beside you at a lab bench, so practical skills need a teacher or a lab.

**Which physics courses does Tutix cover?**

IGCSE Physics (Core and Extended) is ready-made. A Level Physics is planned, and for any other course you can start a class from your own notes.

**Can it help with physics homework?**

Yes. It works through the problem with you and asks for your reasoning rather than only giving the answer.

**Can I use a calculator?**

Yes. Cambridge's IGCSE Physics syllabus allows calculators in all parts of the exam.

_AP® is a trademark registered by the College Board, which is not affiliated with, and does not endorse, this site. Cambridge IGCSE® and Cambridge International AS & A Level are trademarks of Cambridge University Press & Assessment, which is not affiliated with, and does not endorse, this site._