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Online Physics Glossary
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Word Meaning Remarks
Back-EMF Potential difference a cross a conductor caused by change in magnetic flux.
Band theory Theory explaining electrical conduction in solids.
Baryon Subatomic particle composed of three quarks. Interacts with the strong nuclear force.
Battery Device that converts chemical to electrical energy consisting of two dissimilar conductors and an electrolyte.
Beat Slow oscillation in amplitude of a complex wave
Bernoulliís principle When a fixed quantity of fluid flows, the pressure is decreased when the flow velocity increases.
Beta decay Radioactive decay process in which an electron or positron and neutrino is emitted from a nucleus.
Beta particle High speed electron emitted by a radioactive nucleus in beta decay.
Binding energy Negative of the amount of energy needed to separate a nucleus into individual nucleons.
Boiling point Temperature at which a substance, under normal atmospheric pressure, changes from a liquid to a vapor state.
Breeder reactor Nuclear reactor that converts nonfissionable nuclei to fissionable nuclei while producing energy.
Bubble chamber Instrument containing superheated liquid in which the path of ionizing particles is made visible as trails of tiny bubbles.
Buoyant force Upward force on an object immersed in fluid.
 
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