PHY 1020 Exam 2 Study Guide Chapter 5 Reactions Reactors and Bombs Recent reports discussing the population bomb Indicate the explosion is slowing A verify that the population will expand above 20 billion B 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 the measurements of leukemia and thyroid cancer near Chernobyl A B The linear hypothesis C The concept of a chain reaction D The fact that radioactivity is contagious The dangerous radioactivity in fallout comes from A moderator is something that slows neutrons A B Slows fission fragments C fissions more easily then U 235 D Speeds up the chain reaction A neutrons B Neutrinos C Gamma rays D fission fragments Fallout is much worse if the bomb is exploded near the ground A 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 it contains too much uranium It contains no uranium A B C The nuclear reactor depends on slowly neutrons Is carefully designed to shut down quickly D According to the text the least bad place to put nuclear waste is in the sun A B All the way into outer space In our food C D Underground Hey breeder reactor is designed to produce A U 235 B tritium C U 238 D Plutonium A 1 million The number of nuclear weapons that the United States had was closest to B 10 000 C 1000 D Several hundred PCR has been used to choose all that are appropriate A identify children of Thomas Je erson B Check the guilt of convicted murderers C D Identify victims of 9 11 Identify the fathers children The Hiroshima bomb used A A gun design B Thermonuclear fusion C D Implosion boosted fission If the water moderator is lost from a nuclear reactor the reactor will explode like an atomic bomb A 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 Which of the following is not a good example of the doubling law tritium A B U 238 C U 235 D Pu 239 lightning A B Avalanche C Nuclear chain reaction D Future population growth The Canadian Candu reactors use light water A 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 neutrons The number of deaths from the Nagasaki bomb is estimated to be D Steam 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 co ee 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 The centrifuge enrichment plant takes an area of about A Calutrons B Centrifuges C Lasers D gaseous di usion A one living room B One large classroom C One large building D About one square mile PCR involves tritium carbon 14 radiocarbon A B C heavy water D DNA 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 One of the most dangerous radioactive materials from fallout is Depleted uranium is a useful substance because it is radioactive A B an artillery shell made from it is very penetrating C D It is poisonous but not very radioactive 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 the size of a college campus A 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 Is the key mechanism used in Tokamak C D Used by Livermore in the NIF national ignition facility project At 3 mile Island choose all that are correct there was a reactivity accident runaway chain reaction A 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 it uses slow neutrons it cannot meltdown it uses hydrogen is fuel It makes more fuel than it uses Jupiter is not a star because it isn t made of hydrogen It isn t massive enough Is too far from the sun It isn t made of helium A B C D A B C D 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 the spin of the electrons B The motion of the protons C D The electron avalanche the high voltage inside the Adam Magnetic monopoles A are found at the ends of magnets B …
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