💡This unit builds on Unit 8: Electric Charge & Force. Make sure you've covered that first!
Unit 9
🔌DC Circuits
Voltage, current, resistance, and circuit analysis — series and parallel.
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Lessons
1
Voltage, Current & Resistance
The three fundamental quantities of circuits.
15 min→
2
Ohm's Law
V = IR and the relationship between voltage, current, and resistance.
12 min→
3
Series Circuits
Resistors in a single-loop path.
15 min→
4
Parallel Circuits
Resistors providing multiple paths for current.
15 min→
Unit Quiz
AP-format questions: MC, multi-select, and free-response.