Weegy: Energy is :
1. The federal department responsible for maintaining a national energy policy of the United States; created in 1977.
2. [ (physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs.
3. Forceful exertion.
4. Enterprising or ambitious drive.
5. An imaginative lively style (especially style of writing).
6. A healthy capacity for vigorous ... (More)