2. Capacity to do work by performing mechanical, physical, chemical, or electrical tasks or to cause a heat transfer between two objects at different temperatures

3. Popular reference to energy usage is actually... -Transformation of energy from one form to another form that is more useful to us. Potential energy sources include: Nonrenewable fossil and nuclear fuels Renewable forms of solar energy

4. Sources are converted to heat, which is used... Directly

5. To produce mechanical energy

6. To produce electricity

8. Net Energy is the one that counts Difference between the amount of energy in the source and the amount of energy expended to get that energy source ready to use.

9. How do we decide which energy sources to use?List page 353 U. S. influence on world energy policy 4.6% of world population Use 24% of world’s energy Figure 15 - 16

12. Oil located...

14. U.S. Oil Numbers 3% of world’s oil reserves Use 26% of oil extracted world wide (68% for transportation) Imported 55% of oil used in the country in 2001 2001 oil bill = $100 billion U.S. oil supply 80% depleted in 10 - 48 years

15. More oil numbers Production of reserves peak between 2010 and 2030 Identified reserves will last 53 years at present usage Known and projected supplies expected to be 80% used in 42 - 93 years

18. Methane 50 - 90% (mostly) Ethane, propane and butane Hydrogen sulfide What is it?

21. Solid fossil fuel formed from buried remains of land plants subjected to intense heat and pressure over millions of years

23. Coal Gasificationpg. 364 - 365

28. Controlled fission chain reaction using uranium-235 or plutonium-239.

30. Radioactivity Alpha – helium nucleus Beta – electrons Gamma – high energy

31. Protein Synthesis DNA = TAA/CGC/GTA/TTT/CCG/CAA/GAG mRNA = Amino Acid Sequence = AUU/GCG/CAU/AAA/GGC/GUU/CUC Phe-Ala-His-Lys-Gly-Val-Leu

34. Three Mile Island, Pennsylvania

37. Chernobyl Reactor After Accident

38. Radiation Plume From Chernobyl Nuclear Accident - 26 Apr 86

39. What is Nuclear Waste? Low level Gives off small amounts of radiation 100 – 500 years to decay High level Spent fuel rods Any material that has come into contact with the core of the reactor – coolant, tools, old reactor parts, etc. 10,000 - ? to decay

40. What do we do with it?Low level waste

43. High Level Waste