RC circuits & energy A-Level A2 · AP Physics C E&M · IB HL · University Physics II
Charge Launch
Time a capacitor charge to send a cargo capsule through its speed gate.
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Challenge 1 of 3
First charge
Charge a 10 mF capacitor from a 12 V supply, then release its energy into a small capsule.
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Launch the 0.050 kg capsule between 2.85 and 3.15 m/s.
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Test 1Restoring your saved experiment…
3 stars on your first test; 2 within three; 1 after that. A first clear earns 100 XP plus 10 per star. Better star records earn the difference; repeating a record earns no extra XP.
Your experiment is ready.
Choose a charging resistance and release time, then connect exponential capacitor charging to stored energy and launch speed.
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From the course to the controls
The physics behind the game
Choose a charging resistance and release time, then connect exponential capacitor charging to stored energy and launch speed.
V꜀ = Vₛ(1 − e^(−t/RC)); ½mv² = η · ½CV꜀²
Model assumptions. An initially uncharged ideal capacitor charges through R from an ideal constant-voltage source. The launch converts the stated fraction η of stored energy into payload kinetic energy. Charging-resistor heat is not recovered.