r/ibPhysics

Hi All,

I have just finished making this Advanced Physics Calculations tool to generate calculations with worked and explained solutions for all equations in IB Physics (HL and SL). The purpose of the tool is to help students build fluency by generating problems that they can practice until they feel confident. The tool is not intended to replace exam question practice, you should definitely still do lots of this!

The tool generates four kinds of problems:

• Equation - Questions that test application of a single equation (including rearrangments)
• Problem - Questions requiring you to work across multiple equations. -
• Graph - Generartes a graph and requires interpretation and then application to an equation.
• Derivation - algebraic derivation of expressions for various quantities.

Key features include:

• Scarecrow Explains mode - briefly takes you through the underlying physics.
• Worksheet generator - quickly produce worksheets including answer keys.
• Random mode - randomly generates questions based on topics you have selected, greate for revision and selecting equations.

I have tried to keep it user-friendly, but click 'Instructions' if anything is not obvious.

I hope you find it useful, feedback welcomed.

Full disclosure: The tool was made using AI-coding tools, because I am a teacher not a coder. It is 100% free, no subscription, no ads, I am not trying to make money, just trying to be useful.

P.S. I am working on a chemistry one, but by the nature of chemistry it is rather more complex (sorry physicists, no slight intended!) so it will take a while longer to complete.

Insane behavior ngl

Hey everyone, Vaibhav Sir here. After years of teaching IB Physics, I've noticed a massive trap that examiners love to set in the Rigid Body Mechanics (A.4) section.
When you get a problem with multiple forces, multiple objects, and an unknown variable, just memorizing "net force = 0" and "net torque = 0" isn't enough to secure a Level 7. The biggest mistake students make is misidentifying the point of application and failing to visualize how force couples actually rotate a system.
I just put together a complete masterclass breaking down the most challenging rotational equilibrium problems you'll face. Instead of just reading textbook definitions, we go step-by-step through the actual physics:
Balancing non-uniform torque equations without getting lost in the algebra.
The visual trick to never messing up force couples.
Exactly how to set up your hinge force variables so the math naturally works out.
If you want to stop relying on blind memorization and actually understand the mechanics, you can watch the full breakdown here: https://youtu.be/GDtNvt7qQI4?si=pbgYF5ybCO5cBX4a
(Side note: I am also working on uploading complete, question-by-question walkthroughs of original past papers for the channel—no mock papers, only the real ones—so keep an eye out as exam season gets closer).
Drop a comment if you get stuck on a specific step in the video or have any questions about Rigid Body Dynamics. I’m always happy to help clear up the physics!