Flashcards
Mass-energy equivalence
Cards in this deck (9)
- 1What 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
- 2What is the mass-energy equivalence equation?E=mc^2
- 3What does 1 Mev equal in J and Kg?1.6 x 10^-13 j
1.77 x 10^-30 Kg - 4What does 1 u equal in Mev?931.3 Mev
(the mass of 1/12 of a carbon 12 atom) - 5What is the effect of mass-energy equivalence on a macroscopic scale?Negligable
- 6When are the effects of mass-energy equivalence more significant?On nuclear levels such as Nuclear decay, Nuclear fusion and Nuclear fission
- 7What 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 - 8What 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
- 9What 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
Information
- Description
- Physics unit 5 Flashcards on Mass-energy equivalence, created by sammy414 on 18/02/2014.
- Created by
- sammy414
- Views
- 35
- Tags
- Rating