This quantity is multiplied by Young's modulus to define stiffness in the Euler–Bernoulli beam equation. For a solid sphere, 
This quantity is multiplied by Young's modulus to define stiffness in the Euler–Bernoulli beam equation. For a solid sphere, this quantity is two fifths of the radius squared times mass, and this quantity can be found using Steiner's parallel axis theorem. Multiplying this quantity by angular velocity gives angular momentum, and an analogue of Newton's second law sets torque as this quantity times angular acceleration. For 10 points, name this rotational analogue of mass.
This quantity is multiplied by Young's modulus to define stiffness in the Euler–Bernoulli beam equation.