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Angular momentum: Quiz


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Question 1: As the ________ K of a massive rotating body is given by
Kinetic energyClassical mechanicsSpecial relativityMass–energy equivalence

Question 2: It is very often convenient to consider the angular momentum of a collection of particles about their ________, since this simplifies the mathematics considerably.
Center of massCar handlingTireVehicle dynamics

Question 3: Angular momentum can also be calculated by multiplying the square of the displacement r, the mass of the particle and the ________.
Rigid bodyAngular velocityRotation groupCross product

Question 4: When solving to find ________ of this operator, we obtain the following
Vector spaceMatrix (mathematics)Eigenvalue, eigenvector and eigenspaceLinear algebra

Question 5: Because of the cross product, L is a ________ perpendicular to both the radial vector r and the momentum vector p and it is assigned a sign by the right-hand rule.
BivectorEuclidean vectorHodge dualPseudovector

Question 6: For a ________ rotating around an axis of symmetry (e.g.
ForceRigid bodyClassical mechanicsRigid body dynamics

Question 7: When describing the motion of a charged particle in the presence of an ________, the "kinetic momentum" p is not gauge invariant.
Electromagnetic fieldElectromagnetismElectromagnetic radiationMaxwell's equations

Question 8: For an infinitesmal rotation by an angle dφ, the rotated ________ is ψ + idφJzψ.
Quantum stateWave functionQuantum mechanicsBra-ket notation

Question 9: For an object with a fixed mass that is rotating about a fixed symmetry axis, the angular momentum is expressed as the product of the ________ of the object and its angular velocity vector:
Euclidean vectorRotation around a fixed axisMoment of inertiaRigid body

Question 10: Technically, this is because the universal cover of SO(3) is isomorphic to ________, and the representations of the latter are fully known.
Orthogonal groupSpecial unitary groupGeneral linear groupLorentz group


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