Much like a figure skater pulling their limbs in to speed up a spin, the more mass an object has near its axis, the faster it will roll. This is called the conservation of angular momentum!

Speedy Spinning Spheres! Using spheres, cylinders, and straws, the Crew and Dr. Rob learn about inertia, velocity, and conservation of energy due to angular momentum. STEM Challenge: Angular ...

The moment of inertia depends on the mass of an object and how that mass is distributed about the axis of rotation. Note: things can actually get much more complicated than this.

This happens because angular momentum is conserved. Angular momentum is an object's moment of inertia times its angular velocity. If one of the latter two increases, the other decreases, and vice ...

I am referring to this point as "o". L is the angular momentum and ω is the angular velocity. The I is called the moment of inertia, but I prefer to call it "rotational mass".

In a state of bewilderment one fine day, I asked a group of three mechanical engineers at this company where I was then employed if they could please explain to me the concept of “moment of inertia”.

In addition to an Adrenaline Rush, there are a lot of physics involved in making rollercoasters so much fun to ride. The Transfer of Energy and Angular Momentum are two of the keys.

The angular momentum will remain the same while the diver is falling, but what the diver can change is his or her moment of inertia. How? By moving one’s limbs closer to the point of rotation (i ...

The spin axis precesses at a rate of 44.58 ± 3.3 arcseconds per year, which gives a normalized moment of inertia of 0.337 ± 0.024 and yields a rough estimate of the size of the core.