Mass-energy equivalence

Beschreibung

Physics unit 5 Karteikarten am Mass-energy equivalence, erstellt von sammy414 am 18/02/2014.
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Zusammenfassung der Ressource

Frage Antworten
What did Einstein explain in his theory of special relativity? How an object dissipating energy will loose some mass and as a result an object gaining energy will gain mass
What is the mass-energy equivalence equation? E=mc^2
What does 1 Mev equal in J and Kg? 1.6 x 10^-13 j 1.77 x 10^-30 Kg
What does 1 u equal in Mev? 931.3 Mev (the mass of 1/12 of a carbon 12 atom)
What is the effect of mass-energy equivalence on a macroscopic scale? Negligable
When are the effects of mass-energy equivalence more significant? On nuclear levels such as Nuclear decay, Nuclear fusion and Nuclear fission
What is the energy involved in an alpha particle decay? Due to conservation of momentum, the nucleus will recoil and gain a small amount of kinetic energy. The alpha particle always has the same energy
What is the energy involved in beta decay? The energy is divided between the beta particle and neutrino in varying quantities. The nucleus will recoil slightly taking a very small amount of energy
What is the energy involved in Electron capture? A neutrino is emitted carrying the entire amount of energy. The nucleus does not recoil because the neutrino is massless
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