Lesson: Sankey Diagrams Physics
In this lesson, we will learn how to correctly draw and interpret Sankey diagrams for processes that involve the transfer of energy.
The image shows a Sankey diagram for a light bulb that is supplied with 100 J of energy, where 80 J of energy is wasted as heat. What is the useful energy output of the bulb?
The image shows a Sankey diagram for a fluorescent light. What is the input power of the fluorescent light?
The image shows a Sankey diagram of a 100 W light bulb.
What does 1 square of the diagram represent?
How much energy is wasted as heat by the light bulb?
What is the efficiency of the light bulb?