Scenario picker
Scenario
Your answer
Results
- Which device do you think will be the most efficient, and which will be the least?
- Pick the scenario you think is least efficient and press New values. Calculate the efficiency, type it in, and press Check.
- Add the remaining scenarios to the results table - one row each.
- Looking at your Wasted (J) column, which scenario wastes the most energy in absolute joules? Is it the same as the least efficient one? Explain why these two questions can give different answers.
- Of the six scenarios, which one converts the highest fraction of input energy into the desired form, and which the lowest? Suggest a reason for the difference based on what you know about each device.