串联电路与并联电路
Series vs parallel circuits
描述并应用串联电路和并联电路中电流、电压和电阻的规律,并解释每种电路类型的实际用途。
Describe and apply the rules for current, voltage, and resistance in series and parallel circuits, and explain the practical uses of each circuit type
学习证据 / Evidence
- 说明串联电路中电流和电压的规律(电流处处相同;电压相加)。
- 说明并联电路中电流和电压的规律(各支路电压相同;电流相加)。
- 解释家庭电路为什么采用并联电路,并指出每种电路类型的优点。
- 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
评估问题 / Assessment
{{name}}能解释为什么关掉一个房间的灯,家里的灯不会全部熄灭,而一串老式圣诞彩灯只要有一个灯泡坏了,整串灯就会熄灭吗?
Can {{name}} 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?