1st year of post-compulsory secondary education
Heat engines and machines
J.L. San Emeterio
 HTENG 
All Teaching Units Print Home
What is a machine?
A simple machine
An energy saving machine
Conclusions
Heat and mechanical energy
Joule's experiment
The first law of thermodynamics
Conclusions
The limitations of thermodynamics
Perpetual motion
The second law of thermodynamics
Conclusions
Heat engines
An ideal engine
A real engine
Conclusions
Evaluation
3.1 Perpetual motion
A simple model of the so-called perpetual motion