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Question 1: Nuclear fusion was initially pursued only in theoretical stages during World War II, when scientists on the Manhattan Project (led by ________) investigated it as a method to build a bomb.
Emilio G. SegrèJ. Robert OppenheimerEdward TellerHarry S. Truman

Question 2: The new phenomenon of radioactivity was seized upon by the manufacturers of quack medicine (as had the discoveries of ________ and magnetism, earlier), and a number of patent medicines and treatments involving radioactivity were put forward.
Electric chargeElectric currentElectricityElectromagnetism

Question 3: The vast majority of common, natural phenomena only involve gravity and ________, and not nuclear reactions.
ElectromagnetismMaxwell's equationsMagnetic fieldClassical electromagnetism

Question 4: Military reactors that experienced similar accidents were Windscale in the United Kingdom and ________ in the United States.
Experimental Breeder Reactor IShippingport Atomic Power StationBrowns Ferry Nuclear Power PlantSL-1

Question 5: An ionization smoke detector includes a tiny mass of radioactive americium-241, which is a source of ________.
Alpha decayGamma rayNuclear fusionNuclear fission

Question 6: ________ is used with phosphor in rifle sights to increase nighttime firing accuracy.
HydrogenNuclear fusionTritiumNeutron

Question 7: ________ releases gamma rays, which unlike alpha and beta radiation are not matter but electromagnetic radiation of very high frequency, and therefore energy.
Gamma rayNuclear fissionNuclear fusionX-ray

Question 8: A nuclear weapon is an explosive device that derives its destructive force from ________, either fission or a combination of fission and fusion.
AtomNuclear reactionNeutronAtomic nucleus

Question 9: All the early researchers received various ________, much like sunburn, and thought little of it.
Radiation burnX-rayRadiation poisoningIonizing radiation

Question 10: In 1896, Henri Becquerel was investigating phosphorescence in uranium salts when he discovered a new phenomenon which came to be called ________.
Nuclear fissionGamma rayNuclear fusionRadioactive decay
















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