The Joule and the Calorie
This video presents the same text shown beside it, spoken and on screen. It adds nothing the text does not say.
State
The joule is the SI unit of energy; the calorie is a defined unit set equal to exactly 4.184 joules.
Show
A nutritional Calorie, written with a capital C, equals 1000 of these ordinary calories, making it one kilocalorie of energy.
Watch for
The calorie's fixed ratio to the joule is set by definition, not a measured value some future experiment could later revise.
Builds on
Unlocks
- Nothing yet depends on this.