Class 11 Physics simulations · System of Particles and Rotational Motion

Moment of inertia of shapes

Compare how mass distribution changes rotational inertia.

Open the simulation

What to notice

A hoop resists spinning more than a solid disc of the same mass and radius.

Key relation

I = k·mR²

Try this

Notice the sphere is the easiest to spin up.

What you can change

• Mass: 1 to 10 kg
• Radius: 0.2 to 1.5 m

More in System of Particles and Rotational Motion

• Conservation of angular momentum
• Centre of mass of three masses
• Parallel-axis theorem
• A rod as a physical pendulum
• Rolling without slipping
• Rolling race: ring, disc, spheres
• Torque and rotation
• Topple or slide?

See all Class 11 Physics simulations or every Physica simulation.