Sophia Learning
Sophia: Units of Energy: Calorie and Joule
A narrated screencast which discusses various units used to measure energy: calorie, kilocalorie, and joule. [2:22]
Wolfram Research
Wolfram Science World: Joule's Law
This site briefly defines Joule's Law. A formula is provided and links to related terms.
Sophia Learning
Sophia: Sciences: Work
This resource gives the definition of work and explains how work is related to force and distance. Also explains the units used to measure work and how it is calculated.