Lesson 102 of 1570
Physics With AI: Simulations, Vectors, and Free Body Diagrams
Physics needs intuition. PhET simulations plus AI explanations give you that intuition faster than any textbook.
Lesson map
What this lesson covers
Learning path
The main moves in order
- 1Physics is feeling the forces
- 2physics
- 3simulations
- 4free body diagrams
Concept cluster
Terms to connect while reading
Section 1
Physics is feeling the forces
Physics problems are word problems pretending to be math problems. The hard part is not the algebra; it is figuring out what is happening. A ball rolling down a ramp. A car accelerating. A rope swinging. You have to SEE it before you can solve it.
The tools stack
- PhET Simulations (phet.colorado.edu): free, play with gravity, circuits, waves
- ChatGPT or Claude: draws free-body diagrams using text, explains setups
- Wolfram Alpha: computes anything once you have the equations
- Photomath: handles many physics word problems
- Algodoo: sandbox physics simulator, great for intuition
Free body diagrams, AI-assisted
A free body diagram shows all forces on an object: gravity down, normal force up, friction back, applied force forward. Drawing these is a skill. AI can describe them for you, but YOU should draw them to build intuition.
Ask for the setup, not the solution.
Good physics prompt:
'A 5 kg box sits on a 30-degree incline. There is friction with coefficient 0.2.
Walk me through the free body diagram.
Label each force. Do NOT solve the problem yet.
I want to draw it myself from your description.'PhET: the secret weapon
PhET is free physics simulations from the University of Colorado. You drag sliders and see what happens. Pair it with AI: read the topic, play with the sim, ask AI questions about what you saw. This builds real intuition in minutes.
Compare the options
| Textbook-only study | PhET + AI |
|---|---|
| Read about projectile motion | Actually launch a cannon at different angles |
| See one diagram | See 1000 trajectories |
| Ask teacher next class | Ask AI the exact question right now |
| Memorize formula | See when formula breaks (air resistance) |
Where AI struggles with physics
- Anything that requires a diagram ChatGPT cannot see
- Problems with unusual setups (ramps with springs, etc.)
- Getting signs right (positive vs negative directions)
- Quantum and relativity problems - often hallucinates
The honest learning path
- 1Read the problem. Draw a picture
- 2Draw the free body diagram yourself
- 3Pick your axes and direction (+x, -y, whatever)
- 4Write equations of motion
- 5Now and only now, use Wolfram to solve the algebra
- 6Check: does the answer make physical sense?
- 7Redo the tricky part on paper to lock it in
“If you can't explain it simply, you don't understand it well enough.”
Key terms in this lesson
The big idea: physics is intuition first, math second. Use PhET and AI to build the intuition. Save the heavy math for when you already see the setup.
End-of-lesson quiz
Check what stuck
15 questions · Score saves to your progress.
Tutor
Curious about “Physics With AI: Simulations, Vectors, and Free Body Diagrams”?
Ask anything about this lesson. I’ll answer using just what you’re reading — short, friendly, grounded.
Progress saved locally in this browser. Sign in to sync across devices.
Related lessons
Keep going
Builders · 28 min
NotebookLM: Turning Your Notes Into a Study Buddy
Google's NotebookLM lets you upload textbooks, lectures, and notes, then chat with them. This is the most underrated study tool of 2026.
Builders · 30 min
Tokens and Embeddings: How AI Reads Words
AI does not read letters. It reads tokens, which live as vectors in a space of meaning. Learn how text becomes numbers you can do math on.
Builders · 25 min
Benchmarks, Leaderboards, and Their Limits
Every new model claims a new high score. Before you trust a leaderboard, learn what benchmarks actually measure — and what they miss.