Is LRNRS Free Battles really free?

Yes! Free Battles are completely free forever. No hidden costs, no paid tiers required. You can create unlimited battles with 1-4 questions each.

How is LRNRS different from Kahoot?

LRNRS is faster (60-second setup vs multiple minutes), completely free (no paid tiers for core features), requires no sign-up for teachers or students, and has AI that generates better technical questions with proper calculations and LaTeX support.

Do students need accounts to join?

No - students just enter a join code and their name (or nickname). No email, no password, no account required. Privacy-first design.

Can I use LRNRS for formative assessment?

Yes! After each battle, you receive an email with student rankings, question-by-question accuracy stats, and which questions students found most difficult. Perfect for identifying gaps in understanding.

Live Quiz Battles for

Statics Classes

Run live statics quiz battles in about 60 seconds. LaTeX rendering for force and moment equations, support for diagram-based questions. Students join with a code — no accounts, no app.

No student accounts • Unlimited participants free • Manual creation free forever

Why Statics Instructors Use LRNRS

Equation rendering for force problems

Write equilibrium equations with proper notation — $\sum F_x = 0$ , moment arms, unit vectors — and students see rendered math on their own devices, not a projector.

Image-based FBD questions

Upload a free body diagram and ask students to identify the correct reaction forces, choose the right equilibrium equation, or determine the unknown. Images appear on every student's device.

Concept checks between topics

Statics has a clear progression from forces → moments → trusses → frames. Run a 3-4 question battle after each topic before moving on. Catch students who are lost before the next concept layer builds on it.

Extended time for calculations

Set per-question time limits up to 120 seconds. Useful for truss problems where students need to work through a quick calculation before choosing an answer.

Topics Instructors Use LRNRS For

2D and 3D force equilibrium
Free body diagram interpretation
Moment and couple calculations
Truss analysis (method of joints)
Truss analysis (method of sections)
Distributed loads and centroids
Friction: wedges, belts, screws
Internal forces: shear and moment diagrams

How a Statics Battle Works

Before class
Create a 4-question battle on truss analysis. Question 2 has an uploaded truss diagram — students must identify the zero-force member. Question 4 has a rendered equilibrium equation as an answer option.
In class
Share the code. Students join in under a minute. Set 60-second limits on calculation questions, 30 seconds on conceptual ones. Everyone competes simultaneously.
After the battle
The truss diagram question had 45% accuracy. You know exactly where to spend the next 10 minutes — and you can generate a targeted follow-up practice on that specific concept if needed.

Run your first statics battle today

Free to start. Write a few equilibrium or truss questions, launch, and find out who actually understood the lecture.