Science·Energy·conceptual
Series vs parallel circuits
Describe and apply the rules for current, voltage, and resistance in series and parallel circuits, and explain the practical uses of each circuit type
Suggested ages 12–13
Evidence of understanding
- States the rules for current and voltage in series circuits (current same everywhere; voltages add up)
- States the rules for current and voltage in parallel circuits (voltages same across each branch; currents add up)
- Explains why household wiring uses parallel circuits and identifies the advantage of each type
Assessment prompt
Can Series vs parallel circuits explain why the lights in your home don't all switch off when you turn off one room's light, but a string of old-fashioned Christmas lights does go off if one bulb breaks?
Standards alignment
MS-PS2-3US · ngss-ms
MS-PS2-3
Next Generation Science Standards (NGSS) Middle School