Every topic, school to university
Mechanics and projectiles, energy and momentum, circuits and magnetism, waves and optics, thermodynamics, and calculus-based topics like rotational motion and electromagnetism.
Every subjectone subscriptionFrom $9.99per month
An AI physics tutor that sets the problem up before it solves it
Most physics marks are lost before the first equation: a missing force, a sign that flips, a diagram nobody drew. Astra walks you through the setup first, then the algebra — and shows you how to check the answer the way an examiner would.
- Lecture notes & PDFs
- Photos of your notes
- Your exam date
- Your target grade
- Slides & textbooks
- Links & articles
What Astra AI does for you
One subscription turns your own material into the lessons, practice and mock exams this page describes.
The setup comes first
Astra asks for the free-body diagram, the axis and the sign conventions before any equation — the habit that turns 60% answers into full marks.
Check the answer like an examiner
Units on every line, magnitudes that make sense, directions that match — Astra takes you through the same checks physics teachers run and marks where a slip happened.
Units and dimensions on every step · Vector directions and sign conventions · Order-of-magnitude sanity checks
Scan a problem or describe a diagram
Photograph a question, or describe the setup in words when the diagram is on paper — Astra works from what you give it and asks for what it still needs.
Practise with marked questions
Questions built from your own notes and past papers, marked every time, with the mistakes scheduled for review before the exam.
Exam-ready by your date
Set your exam date and get a topic-by-topic plan with graded mock papers, from motion in year 10 to calculus-based mechanics at university.
How to get started
Describe or scan the problem
Type it, photograph it or describe the diagram in words. Numbers with their units already help a lot.
Set up, then solve
Astra works through the forces, the axes and the equations step by step, asking you for the next move along the way.
Check and practise
Run the seven physics checks on the answer, then try similar problems until the method is automatic.
Frequently asked questions
It can work through physics problems step by step, and it is strongest when you solve with it rather than copy from it. Ask for the setup first and the numbers last, keep units on every line, and check the answer against the seven physics checks — the same ones that catch AI mistakes.
Mechanics, energy and momentum, electricity and magnetism, waves, optics, thermodynamics and modern physics, across school and university levels — including calculus-based courses.
It shows the working. Astra explains each step of the setup and the solution, asks you questions along the way and checks your understanding before moving on.
Yes. Scan the page or describe the diagram in words — what is attached to what, which way each arrow points — and Astra works from that, asking for anything missing.
One Astra AI subscription covers physics and every other subject, from $9.99 per month, with annual billing about 17% cheaper than monthly.
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A topic-by-topic plan and graded mock exams built around your exam date.
Learn moreBring the physics problem you are stuck on
One subscription covers physics, every other subject and the whole study toolkit.
- Every subject in one plan
- Built from your own notes and past papers
- 2 grades higher, or your money back