the branch of physics that studies the properties of materials in the solid state: electrical conduction in crystals of semiconductors and metals; sup more..the branch of physics that studies the properties of materials in the solid state: electrical conduction in crystals of semiconductors and metals; superconductivity; photoconductivity(noun.cognition)
the branch of physics that makes theoretical predictions about the behavior of macroscopic systems on the basis of statistical laws governing its comp more..the branch of physics that makes theoretical predictions about the behavior of macroscopic systems on the basis of statistical laws governing its component particles(noun.cognition)
(physics) any of several kinds of apparatus that maintain and control a nuclear reaction for the production of energy or artificial elements (noun.artifact)
the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more st more..the quality of a physical system that persists in its existing equilibrium when undisturbed (or only slightly disturbed) but able to pass to a more stable equilibrium when sufficiently disturbed(noun.attribute)
(physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave th more..(physics) the property of matter and electromagnetic radiation that is characterized by the fact that some properties can be explained best by wave theory and others by particle theory(noun.attribute)
(physics) the property of a body that determines the fraction of the incident radiation or sound flux absorbed or absorbable by the body (noun.attribute)
(physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that i more..(physics) the mass of a body in motion relative to the observer: it is equal to the rest mass multiplied by a factor that is greater than 1 and that increases as the magnitude of the velocity increases(noun.attribute)
(physics) the mass of a body as determined by the second law of motion from the acceleration of the body when it is subjected to a force that is not d more..(physics) the mass of a body as determined by the second law of motion from the acceleration of the body when it is subjected to a force that is not due to gravity(noun.attribute)
(physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of th more..(physics) a point in the ideal multidimensional phase space that is used to describe a system toward which the system tends to evolve regardless of the starting conditions of the system(noun.cognition)
(physics) statistical law obeyed by a system of particles whose wave function is not changed when two particles are interchanged (the Pauli exclusion more..(physics) statistical law obeyed by a system of particles whose wave function is not changed when two particles are interchanged (the Pauli exclusion principle does not apply)(noun.cognition)
(chemistry and physics) law stating that the pressure exerted by a mixture of gases equals the sum of the partial pressures of the gases in the mixtur more..(chemistry and physics) law stating that the pressure exerted by a mixture of gases equals the sum of the partial pressures of the gases in the mixture; the pressure of a gas in a mixture equals the pressure it would exert if it occupied the same volume alone at the same temperature(noun.cognition)
(physics) law obeyed by a systems of particles whose wave function changes when two particles are interchanged (the Pauli exclusion principle applies) (noun.cognition)
(physics) two laws governing electric networks in which steady currents flow: the sum of all the currents at a point is zero and the sum of the voltag more..(physics) two laws governing electric networks in which steady currents flow: the sum of all the currents at a point is zero and the sum of the voltage gains and drops around any closed circuit is zero(noun.cognition)
(physics) the law that states any two bodies attract each other with a force that is directly proportional to the product of their masses and inversel more..(physics) the law that states any two bodies attract each other with a force that is directly proportional to the product of their masses and inversely proportional to the square of the distance between them(noun.cognition)
(physics) the principle that a measured quantity of mass is equivalent (according to relativity theory) to a measured quantity of energy (noun.cognition)
(physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as more..(physics) the basis of quantum theory; the energy of electromagnetic waves is contained in indivisible quanta that have to be radiated or absorbed as a whole; the magnitude is proportional to frequency where the constant of proportionality is given by Planck's constant(noun.cognition)
(physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and invers more..(physics) the theory that any two particles of matter attract one another with a force directly proportional to the product of their masses and inversely proportional to the square of the distance between them(noun.cognition)
(physics) a universal law that states that the laws of mechanics are not affected by a uniform rectilinear motion of the system of coordinates to whic more..(physics) a universal law that states that the laws of mechanics are not affected by a uniform rectilinear motion of the system of coordinates to which they are referred(noun.cognition)
(physics) the principle that an observer has no way of distinguishing whether his laboratory is in a uniform gravitational field or is in an accelerat more..(physics) the principle that an observer has no way of distinguishing whether his laboratory is in a uniform gravitational field or is in an accelerated frame of reference(noun.cognition)
(physics) a theory that explains a physical phenomenon in terms of a field and the manner in which it interacts with matter or with other fields (noun.cognition)
(physics) a theory of atomic structure that combined Rutherford's model with the quantum theory; electrons orbiting a nucleus can only be in certain s more..(physics) a theory of atomic structure that combined Rutherford's model with the quantum theory; electrons orbiting a nucleus can only be in certain stationary energy states and light is emitted when electrons jump from one energy state to another(noun.cognition)
(physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed syst more..(physics) parity is conserved in a universe in which the laws of physics are the same in a right-handed system of coordinates as in a left-handed system(noun.cognition)
(physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by more..(physics) a quantum of energy or quasiparticle that can be propagated as a traveling wave in nonlinear systems and is neither preceded nor followed by another such disturbance; does not obey the superposition principle and does not dissipate(noun.event)
(physics) an abrupt transition of an electron or atom or molecule from one quantum state to another with the emission or absorption of a quantum (noun.event)
(physics) a combining of charges or transfer of electrons in a gas that results in the neutralization of ions; important for ions arising from the pas more..(physics) a combining of charges or transfer of electrons in a gas that results in the neutralization of ions; important for ions arising from the passage of high-energy particles(noun.event)
(physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which more..(physics) hypothetical truly fundamental particle in mesons and baryons; there are supposed to be six flavors of quarks (and their antiquarks), which come in pairs; each has an electric charge of +2/3 or -1/3(noun.object)
a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dar more..a hypothetical subatomic particle of large mass that interacts weakly with ordinary matter through gravitation; postulated as a constituent of the dark matter of the universe(noun.object)
(physics) an effect whereby a body moving in a rotating frame of reference experiences the Coriolis force acting perpendicular to the direction of mot more..(physics) an effect whereby a body moving in a rotating frame of reference experiences the Coriolis force acting perpendicular to the direction of motion and to the axis of rotation; on Earth the Coriolis effect deflects moving bodies to the right in the northern hemisphere and to the left in the southern hemisphere(noun.phenomenon)
(physics) a spectrum of radiation caused by electron transitions within an atom; the series of spectrum lines is characteristic of the element (noun.phenomenon)
(physics) a force due to the earth's rotation; acts on a body in motion (airplane or projectile) in a rotating reference frame; in a rotating frame of more..(physics) a force due to the earth's rotation; acts on a body in motion (airplane or projectile) in a rotating reference frame; in a rotating frame of reference Newton's second law of motion can be made to apply if in addition to the real forces acting on a body a Coriolis force and a centrifugal force are introduced(noun.phenomenon)
(physics) a thermodynamic quantity equivalent to the capacity of a physical system to do work; the units of energy are joules or ergs (noun.phenomenon)
(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance t more..(physics) a manifestation of energy; the transfer of energy from one physical system to another expressed as the product of a force and the distance through which it moves a body in the direction of that force(noun.phenomenon)
(physics) the force of attraction between all masses in the universe; especially the attraction of the earth's mass for bodies near its surface (noun.phenomenon)
(physics) the rate of change of the angular position of a rotating body; usually expressed in radians per second or radians per minute (noun.phenomenon)
(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge boson more..(physics) the transfer of energy between elementary particles or between an elementary particle and a field or between fields; mediated by gauge bosons(noun.phenomenon)
(physics) an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay; more..(physics) an interaction between elementary particles involving neutrinos or antineutrinos that is responsible for certain kinds of radioactive decay; mediated by intermediate vector bosons(noun.phenomenon)
(physics) the process in which there is movement of a substance from an area of high concentration of that substance to an area of lower concentration (noun.process)
(physics) the universal constant in the gas equation: pressure times volume = R times temperature; equal to 8.3143 joules per kelvin per mole (noun.quantity)
apply quantum theory to; restrict the number of possible values of (a quantity) or states of (a physical entity or system) so that certain variables c more..apply quantum theory to; restrict the number of possible values of (a quantity) or states of (a physical entity or system) so that certain variables can assume only certain discrete magnitudes that are integral multiples of a common factor(verb.cognition)
(of physical systems) continuing in its present state of equilibrium unless sufficiently disturbed to pass to a more stable state of equilibrium (adj.pert)