Big Bang - The explosion and rapid explosion
of matter that occurred at the creation of our universe. In the
immediate aftermath of the Big Bang, all matter is thought to
have consisted of free quarks and gluons at extremely high
temperatures and densities. This plasma then cooled and
coalesced into the particles and atoms that now make up all
objects in the universe.
Black Hole - A region of space that has so
much mass concentrated in it that there is no way for a nearby
object to escape its gravitational pull.
Bohr Model - The amount of energy given to an
electron when passing from the negative end to the positive end
of a one-volt battery.
Bremsstrahlung - Radiation that is emitted when a
free electron is deflected by an ion, but the free electron is
not captured by the ion. Generally, it is a type of radiation
emitted when high energy electrons are accelerated. (German for
Chamber - Particle with the same mass but
opposite charge (and some other properties) as another particle
under normal earth conditions.
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
- Slow oscillation in amplitude of
a complex wave
Principle - When a fixed quantity of fluid
flows, the pressure is decreased when the flow velocity
Beta Decay - Radioactive decay process in
which an electron or positron and neutrino is emitted from a
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
Reactor - Nuclear reactor that converts
no fissionable nuclei to fissionable nuclei while producing
Buoyant Force - Upward force on an object
immersed in fluid.