Energy Transformation Diagrams Flashcards
What can energy transformation diagrams be a great way of showing?
The efficiency of a device
What does the thickness of the arrow in a Sankey diagram represent?
The amount of energy
The idea of a Sankey diagram is to make it ___ ___ ___ at a glance how muh of the ____ ____ is being ____ ____ compared with how much is being ____
The idea of a Sankey diagram is to make it easy to see at a glance how muh of the energy in is being usefully employed compared with how much is being wasted
If you see a thick arrow going into a Sankey diagram, then several smaller arrows going off it, what does this show?
The differnt energy transformations taking place
In an exam, what are they likely to ask you to do with two different sketches?
Compare them to say which is more efficient
Generally, how can you tell from 2 Sankey diagrams which appliance is more efficient?
By which has the thickest useful energy arrow (although you ,may also need to compare the amount of energy going in as well)
