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Quizbowl: Science
Quizbowl
7
Science
11th Grade
12/19/2012

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Term
Kinetic Energy
Definition
-three-halves times Boltzmann's constant times temperature
-Planck's constant times frequency minus the work function
-one-half times moment of inertia times angular velocity
-one-half times mass times velocity squared
-Energy possessed by objects in motion
-conserved in an elastic collision
-represented by a capital T in the formula for the Hamiltonian
Term
Neutrino
Definition
-left handed and right handed eigenstates can end up with widely different values
-MSW effect
-flavor oscillation
-lepton
-electron, muon, and tau varieties
-"seesaw” mechanism
-"sterile” type of this particle
-first proposed by Wolfgang Pauli as a method of preserving conservation of mass and momentum in beta decay
-Super-Kamiokande device detects them
-Homestake experiment attempted to count these particles emitted
-eigenvalue on the Majorana scale
-Supernova 1987A
-Named by Enrico Fermi
Term
Friction
Definition
-shearons
-Tomlinson Model
-Triboelectric Effect
-"skin" variety
-Amontons' Laws
-superlubricity is the absence of this force
perpendicular to the normal force
-provides resistance when two surfaces slide over each other
-symbolized mu
-Ball and roller bearings
-kinetic or static variety
-first described by Coulomb
Term
Surface Tension
Definition
-Marangoni effect - when a gradient causes mass transfer of fluids
-Eotvos rule
-Young-Laplace Equation
-Capillary action
-reduced by surfactants (detergents; emulsifiers)
-allow insects to walk on water
-Wilhelmy plate; DuNouy Ring
-DPPC
Term
Photon
Definition
-created in stimulated emission
-Planck's constant times frequency
-mediate the electromagnetic force
-particles that make up light
-Klein-Nishina formula
-Interactions of two of these particles at high energies can create electrons and positrons through pair production
-gauge bosons of electromagnetism
-zero spin, massless
-double slit experiment
Term
Proton
Definition
-predicted to decay into a neutral pion and a positron
-two up quarks and one down quark
-hydrogen ion
-represented by letter Z
-positive particle in nucleus
Term
Normal Force
Definition
-mass times gravity times cosine of the incline of the surface
-determine the friction operating on a body
-perpendicular component of the contact force exerted by a body on a surface
-capital N
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