The history of energy being transformed from matter is provided at this site. The information starts at Einstein's formula, then discussions fusion, future energy sources, fission, and nuclear reactors.

Find out about the first and second laws of thermodynamics, and how they relate to the biology of life.

Provides a long list of physics formulas for easy reference.

This tutorial from Bill Nye explains how a coconut (and the air inside it) can transform the energy of movement into a variety of interesting sounds.