GGR333H5 Lecture Notes - Lecture 2: Sulfur Dioxide, Electrical Energy, Oil Sands
Document Summary
Expanding material production: taking into cultivation land of inferior quality, using existing land more intensively. In short, the very process of growth ensured that it could not be continued indefinitely. Greek root: en (in or at, ergon (work) * force x distance through which that force acts. 1 joule = amount of work done: by a force of 1 newton, acting through a distance of 1 meter. Power = (work done/ time taken) = (energy used/ time taken) Processes through which the transformation of energy from primary sources to end uses. Ex: electrical energy result of conversion process that began with: chemical, nuclear, and solar energy sources. Animate metabolism: reorganizes nutrients into growing tissues, maintains body functions. Efficiency = (work done/ energy spent) or (work output/ energy input) An energy system is an interrelated network of. 2 kinds of coal with identical energy densities .
