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PHY 1020 Exam 2 Study Guide !!Chapter 5: Reactions, Reactors, and Bombs !!Recent reports discussing the population bomb A. verify that the population will expand above 20 billion B. Indicate the explosion is slowing C. Show that it doesn't matter since food supply grows equally fast D. Show that the population of the world is now decreasing !A one-kiloton nuclear weapon, Exploded at ground-level, would destroy A. about 1 square kilometer of a city B. Most of a small city C. Most of a large city D. Many cities, if they were within 100 miles of each other !For an atomic bomb, the number of doubling required is closest to A. 1023 B. 235 C. 80 D. 16 !An implosion type bomb is required for A. a U-235 bomb B. a Pu-239 bomb C. a thermonuclear bomb D. A boosted vision weapon !Moore’s law relates too A. urban legends B. Computer viruses C. biological viruses D. Computer chip capability !Which of the following does not represent exponential growth A. A computer virus B. Spread of smallpox C. Epidemic of flu D. Illness from anthrax !This statement that Chernobyl accident will kill 2400 people is based on A. the measurements of leukemia and thyroid cancer near Chernobyl B. The linear hypothesis C. The concept of a chain reaction D. The fact that radioactivity is contagious !A moderator is something that A. slows neutrons B. Slows fission fragments C. fissions more easily then U-235 D. Speeds up the chain reaction !The dangerous radioactivity in fallout comes from A. neutrons B. Neutrinos C. Gamma rays D. fission fragments !Fallout is much worse if the bomb A. is exploded near the ground B. Is exploded at high altitude C. Undergoes fewer generations D. Contains it no fissile material !A nuclear reactor cannot explode like a nuclear bomb because A. it contains too much uranium B. It contains no uranium C. The nuclear reactor depends on slowly neutrons D. Is carefully designed to shut down quickly !According to the text, the least bad place to put nuclear waste is A. in the sun B. All the way into outer space C. In our food D. Underground !Hey breeder reactor is designed to produce A. U-235 B. tritium C. U-238 D. Plutonium !The number of nuclear weapons that the United States had was closest to A. 1 millionB. 10,000 C. 1000 D. Several hundred !PCR has been used to (choose all that are appropriate) A. identify children of Thomas Jefferson B. Check the guilt of convicted murderers C. Identify victims of 9/11 D. Identify the fathers children !The Hiroshima bomb used A. A gun design B. Thermonuclear fusion C. Implosion D. boosted fission If the water moderator is lost from a nuclear reactor A. the reactor will explode like an atomic bomb B. Reaction from fission fragments will continue to produce heat C. All of the power of the reactor will immediately go to zero D. The chain reaction will increase, Causing A reactivity accident The material that might be “reprocessed” from nuclear waste is A. tritium B. U-238 C. U-235 D. Pu-239 !Which of the following is not a good example of the doubling law? A. lightning B. Avalanche C. Nuclear chain reaction D. Future population growth The Canadian Candu reactors use A. light water B. deuterium C. Thermonuclear fusion D. tritium !Plutonium can explode with fewer generations then can uranium because A. plutonium fission requires more neutrons B. Plutonium fission releases more energy C. Plutonium does not require a moderator D. Plutonium turns into uranium !In a nuclear power plant, the material that runs through the turbine is A. fission fragments B. Electrons C. neutronsD. Steam !The number of deaths from the Nagasaki bomb is estimated to be A. 100 to 500 B. 50,000 to 150,000 C. 2 to 3 million D. 12 million !The smallest container that could contain one critical mass of plutonium is A. A tablespoon B. A coffee mug C. A large suitcase D. The trunk of an automobile The bomb dropped on Hiroshima used as it's fuel A. uranium B. Plutonium C. Hydrogen D. deuterium and lithium-6 !Saddam Hussein planned it to enrich uranium using A. Calutrons B. Centrifuges C. Lasers D. gaseous diffusion !The centrifuge enrichment plant takes an area of about A. one living room B. One large classroom C. One large building D. About one square mile !PCR involves A. tritium B. carbon-14 (radiocarbon) C. heavy water D. DNA !One of the most dangerous radioactive materials from fallout is A. U-235 B. Pu-239 C. Sr-90 D. deuterium !The term China Syndrome refers to A. the accident Chernobyl B. Meltdown of the nuclear fuel C. Production of plutonium in China D. Nuclear terrorism !Depleted uranium is a useful substance because A. it is radioactive B. an artillery shell made from it is very penetrating C. It is poisonous (but not very radioactive) D. It can be converted to U-235 !PCR was used to learn about A. the critical mass of uranium B. Descendants of Sally Hemmings C. The security of Yucca Mountain D. Locations of oil under ground !Another name for the H-bomb is A. dirty bomb B. Stealth bomb C. fission bomb D. Thermonuclear bomb !And nuclear explosions similar to the one produced by North Korea would destroy an area of about A. the size of a college campus B. The size of a medium-sized town C. The size of a major city D. The size of a small state (e.g. Massachusetts) !Cold Fusion A. despite claims, has never been observed B. Has been seen in laboratory experiments C. Is the key mechanism used in Tokamak D. Used by Livermore in the NIF (national ignition facility) project At 3 mile Island (choose all that are correct) A. there was a reactivity accident (runaway chain reaction) B. Over 200 people are expected to die from the released fission fragments C. Some of the uranium fuel melted D. Despite newspaper reports, no radioactivity was released !What distinguishes a breeder reactor from other reactors is that A. it uses slow neutrons B. it cannot meltdown C. it uses hydrogen is fuel D. It makes more fuel than it uses !Jupiter is not a star because A. it isn't made of hydrogen B. It isn't massive enough C. Is too far from the sun D. It isn't made of helium !!!!!!!!Chapter 6: Electricity and Magnetism !Current is measured by: A. Volts B. Calories C. Amps D. Watts E. Ohms !A Volt is a measure of A. Energy per electron B. Number of electrons per second C. Force on the electron D. density of electrons !Magnetism comes from A. magnetic models B. Moving quantum of light C. Quantization of charge D. Moving the electric charge !In a permanent magnet, the magnetism comes from A.


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FSU PHY 1020 - Exam 2

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