能量 Energy

串联电路与并联电路

Series vs parallel circuits

加热实验与 Q = mcΔT

Heating experiments and Q = mcΔT

欧姆定律：电压、电流与电阻

Ohm's Law: voltage, current, resistance

功率：瓦特与每秒能量

Power: watts and energy per second

可再生能源与不可再生能源

Renewable vs non-renewable energy

电路元件为何表现不同

Why circuit components behave differently

电流、电压及其测量

Current, voltage, and what they measure

能量不会凭空产生或消失

Energy can't be created or destroyed

能量储存与转移

Energy stores and transfers

静电与火花

Static electricity and sparks

传导、对流和辐射

Conduction, convection, and radiation

效率、桑基图与做功

Efficiency, Sankey diagrams, and work done

灯泡会亮起来吗？

Will the bulb light up?

制作能量转换装置

Building an energy-converting device

电路词汇

Circuit vocabulary

能量如何传递

How energy travels around

阅读和绘制电路图

Reading and drawing circuit diagrams

速度与能量

Speed and energy

物体碰撞时会发生什么

What happens when things collide

用正确符号绘制电路图

Drawing circuits with proper symbols

电池越多，灯泡越亮

More batteries, brighter bulb

制作遮阳结构

Building shade from the sun

阳光让东西变热

Sunlight warms things up

能量类型的命名

Naming types of energy

搭建简单电路

Building a simple circuit

导体和绝缘体

Conductors and insulators

开关是怎样工作的

How switches work

家里什么物品用电

What uses electricity at home