Nuclear Fission Flashcard

Front

What is nuclear fission?

Back

Nuclear fission is a nuclear reaction in which a large nucleus splits into smaller nuclei, along with the release of energy.

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What is the role of neutrons in nuclear fission?

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Neutrons are essential in nuclear fission as they can be absorbed by a nucleus, making it unstable and causing it to split.

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What is the difference between nuclear fission and nuclear fusion?

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In nuclear fission, a large nucleus splits into smaller nuclei, releasing energy, while in nuclear fusion, two small nuclei combine to form a larger nucleus, also releasing energy.

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What is a chain reaction in nuclear fission?

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A chain reaction occurs when the neutrons produced from one fission event cause additional fission events in nearby nuclei, leading to a self-sustaining series of reactions.

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What is the mass-energy equivalence principle?

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The mass-energy equivalence principle states that mass can be converted into energy and vice versa, as described by Einstein's equation E=mc².

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What is critical mass?

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Critical mass is the minimum amount of fissile material needed to maintain a nuclear chain reaction.

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What happens to mass during nuclear fission?

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During nuclear fission, a small amount of mass is converted into energy, resulting in a loss of mass in the fission products.

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What is the significance of the energy released in nuclear fission?

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The energy released in nuclear fission can be harnessed for power generation in nuclear reactors or used in nuclear weapons.

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What are fission products?

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Fission products are the smaller nuclei that result from the splitting of a larger nucleus during nuclear fission.

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What is a neutron moderator?

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A neutron moderator is a material used in nuclear reactors to slow down neutrons, increasing the likelihood of fission events.