# Radius of gyration: Quiz

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Question 1: It is calculated as the ________ distance of the objects' parts from either its center of gravity or an axis.
Arithmetic meanAverageAlternating currentRoot mean square

Question 2: In ________, where people deal with continuous bodies of matter, the radius of gyration is more usually calculated as an integral.
EngineeringMechanical engineeringElectrical engineeringCivil engineering

Question 3: The hydrodynamic radius is numerically similar, and can be measured with ________.
High performance liquid chromatographyGas-liquid chromatographyColumn chromatographySize exclusion chromatography

Question 4: The radius of gyration (r) about a given axis can be computed in terms of the ________ I around that axis, and the total mass m;
Euclidean vectorRigid bodyMoment of inertiaRotation around a fixed axis

Question 5: However, if the principal moments of the two-dimensional gyration tensor are not equal, the beam will tend to ________ around the axis with the smaller principal moment.
Creep (deformation)CorrosionFatigue (material)Buckling

Question 6: where I is the ________ and A is the total cross-sectional area.
Stress (mechanics)BendingSecond moment of areaMoment of inertia

Question 7: In ________, the two-dimensional radius of gyration is used to describe the distribution of cross sectional area in a beam around its centroidal axis.
ConstructionCivil engineeringMetallurgyStructural engineering

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