A problem from a chemistry textbook is posed on the screen. In this problem, ethanol is used to illustrate the amount of energy, in joules, required to change a substance from a liquid to a gas. The boiling point of ethanol is given, and...

The eighth video in a series about basic physics terms, a segment focuses on work. A strong man and a clown demonstrate work in action. After several examples and a defintion, the video closes by introducing joules as a unit of measure.