Energy

Kinetic Energy – Energy of Motion Potential Energy – Energy of Position (stored energy Forms of Energy

Potential Energy

Kinetic Energy

First Law of Thermodynamics  Energy can be transferred or transformed but it cannot be created or destroyed

Second Law of Thermodynamics  Every energy transfer or transformation increases the entropy of the Universe

Nuclear Fission  Isotopes with large mass numbers are split by being struck with a neutron which releases energy and more neutrons

Nuclear Fusion  Two light isotopes are forced together at high temperatures to form a heavier nucleus and releases a large amount of energy

 There is no away (conservation of matter)  You cannot get something for nothing (1 st law)  You cannot break even (2 nd law) Three Scientific Laws

Dot Diagram

Principle Tom McCoy p 111 # 28

 Nuclear Weapons Chart  Center Dot – 3 megatons - WWII firepower Dot Diagram

World War II  6 years for U.S.  100 million died Globally

 Nuclear Weapons Chart  Whole Chart – 18,000 megatons (6000 WWIIs)  Top Left hand circle – 9 megatons – One Poseidon submarine (31 subs and 10 Polaris subs)  Lower left hand circle – 24 megatons – Trident Submarine  2 squares enough to destroy all the large and medium cities in the world Dot Diagram

Little Boy - Uranium It exploded with an energy of 16 kilotons of TNT (67 TJ). It has been estimated that 130,000 to 150,000 people had died as a result of its use by the end of December 1945 kilotons of TNT

Hiroshima  The mushroom cloud over Hiroshima after the dropping of "Little Boy"mushroom cloudHiroshima

Fat Man - Plutonium It exploded with an impact of 21 kilotons of energy (75 million sticks of dynamite) An estimated 39,000 people were killed outright by the bombing at Nagasaki, and a further 25,000 were injured. Thousands more died later from related blast and burn injuries, and hundreds more from radiation illnesses from exposure to the bomb's initial radiation.

Nagasaki  Mushroom cloud from the atomic explosion over Nagasaki rising 60,000 feet into the air on the morning of August 9, 1945.

Countries with Nuclear Weapons  Red – Nuclear Powers (Big 5)  Brown – other known nuclear powers  Purple – countries who once had nuclear weapons  Yellow – countries that are suspected of developing weapons  Blue – countries that at one point had nuclear weapons or programs

Nuclear Stockpiles

People of Principle Robert Oppenheimer  Now, I have become Death, the destroyer of worlds

The Last Epidemic Obama Prague Speech – A world without Nuclear Weapons

Principles p 111 # 28 p 118 # 4 P 104 # 15