Interactive labs
Predict first, then run the simulation.
Each lab starts with a simulation. You predict what will happen, run it, and then solve numeric problems with fresh numbers. If your answer matches a common wrong method, the feedback tells you which one.
Projectile motion
Horizontal and vertical motion are independent.
Launch at any speed and angle and watch the velocity components. Then solve fall-time, range, peak-height and flight-time problems.
- Bench
- live trajectory + component vectors
- Practice
- 6 types · new numbers each time
Collisions & momentum
Momentum is conserved in a collision. Kinetic energy usually isn't.
Run sticky and elastic collisions with live momentum and kinetic-energy meters, then pick the right conservation law for each problem.
- Bench
- two-cart track + conservation meters
- Practice
- 6 types · new numbers each time
Circuits
Two equal bulbs give four times the power in parallel.
Switch two resistors between series and parallel and watch the current, then practise the sharing rules with new numbers.
- Bench
- live circuit + animated current
- Practice
- 4 types · new numbers each time
We're considering rolling motion (ROT-06) and springs (SHM-03) for the next labs.
next Not sure where to start?
Take the diagnostic first. Your report shows which kind of mistake you make most, and the matching lab is a good place to start.